Home / 38,929.15-53,711.10-21,927.45

Finding the Fourth Proportional to 38,929.15, 53,711.10 and 21,927.45

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Solution

The fourth proportional to 38,929.15, 53,711.10 and 21,927.45 is: 30,253.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,929.15 : 53,711.10 = 21,927.45 : x
  2. Step 2: Convert to fraction form
    38,929.15/53,711.10 = 21,927.45/x
  3. Step 3: Cross multiply
    38,929.15x = 53,711.10 × 21,927.45
  4. Step 4: Simplify right side
    38,929.15x = 1,177,747,459.70
  5. Step 5: Solve for x
    x = 1,177,747,459.70/38,929.15
  6. Step 6: Final answer
    x = 30,253.61

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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.