Home / 36,988-51,043.62-20,221

Finding the Fourth Proportional to 36,988, 51,043.62 and 20,221

Calculator

Solution

The fourth proportional to 36,988, 51,043.62 and 20,221 is: 27,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,988 : 51,043.62 = 20,221 : x
  2. Step 2: Convert to fraction form
    36,988/51,043.62 = 20,221/x
  3. Step 3: Cross multiply
    36,988x = 51,043.62 × 20,221
  4. Step 4: Simplify right side
    36,988x = 1,032,153,040.02
  5. Step 5: Solve for x
    x = 1,032,153,040.02/36,988
  6. Step 6: Final answer
    x = 27,905.08

Related Problems

Find fourth proportional to 18,494, 25,521.81 and 10,110.50
Half scale
Find fourth proportional to 73,976, 102,087.24 and 40,442
Double scale
Find fourth proportional to 36,989, 51,045 and 20,222
Similar ratio
Find fourth proportional to 55,482, 76,565.43 and 30,331.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.