Home / 40,017.12-55,223.01-22,111.80

Finding the Fourth Proportional to 40,017.12, 55,223.01 and 22,111.80

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Solution

The fourth proportional to 40,017.12, 55,223.01 and 22,111.80 is: 30,513.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,017.12 : 55,223.01 = 22,111.80 : x
  2. Step 2: Convert to fraction form
    40,017.12/55,223.01 = 22,111.80/x
  3. Step 3: Cross multiply
    40,017.12x = 55,223.01 × 22,111.80
  4. Step 4: Simplify right side
    40,017.12x = 1,221,080,152.52
  5. Step 5: Solve for x
    x = 1,221,080,152.52/40,017.12
  6. Step 6: Final answer
    x = 30,513.94

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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.