Home / 38,939.90-53,737.02-21,034.91

Finding the Fourth Proportional to 38,939.90, 53,737.02 and 21,034.91

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Solution

The fourth proportional to 38,939.90, 53,737.02 and 21,034.91 is: 29,028.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.90 : 53,737.02 = 21,034.91 : x
  2. Step 2: Convert to fraction form
    38,939.90/53,737.02 = 21,034.91/x
  3. Step 3: Cross multiply
    38,939.90x = 53,737.02 × 21,034.91
  4. Step 4: Simplify right side
    38,939.90x = 1,130,353,110.68
  5. Step 5: Solve for x
    x = 1,130,353,110.68/38,939.90
  6. Step 6: Final answer
    x = 29,028.14

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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.