Home / 38,987.31-58,470.58-10,905.62

Finding the Fourth Proportional to 38,987.31, 58,470.58 and 10,905.62

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Solution

The fourth proportional to 38,987.31, 58,470.58 and 10,905.62 is: 16,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.31 : 58,470.58 = 10,905.62 : x
  2. Step 2: Convert to fraction form
    38,987.31/58,470.58 = 10,905.62/x
  3. Step 3: Cross multiply
    38,987.31x = 58,470.58 × 10,905.62
  4. Step 4: Simplify right side
    38,987.31x = 637,657,753.22
  5. Step 5: Solve for x
    x = 637,657,753.22/38,987.31
  6. Step 6: Final answer
    x = 16,355.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.