Home / 37,782.05-52,139.67-21,649.05

Finding the Fourth Proportional to 37,782.05, 52,139.67 and 21,649.05

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Solution

The fourth proportional to 37,782.05, 52,139.67 and 21,649.05 is: 29,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,782.05 : 52,139.67 = 21,649.05 : x
  2. Step 2: Convert to fraction form
    37,782.05/52,139.67 = 21,649.05/x
  3. Step 3: Cross multiply
    37,782.05x = 52,139.67 × 21,649.05
  4. Step 4: Simplify right side
    37,782.05x = 1,128,774,094.99
  5. Step 5: Solve for x
    x = 1,128,774,094.99/37,782.05
  6. Step 6: Final answer
    x = 29,875.93

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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.