Home / 27,724.90-38,260.32-15,788.24

Finding the Fourth Proportional to 27,724.90, 38,260.32 and 15,788.24

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Solution

The fourth proportional to 27,724.90, 38,260.32 and 15,788.24 is: 21,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.90 : 38,260.32 = 15,788.24 : x
  2. Step 2: Convert to fraction form
    27,724.90/38,260.32 = 15,788.24/x
  3. Step 3: Cross multiply
    27,724.90x = 38,260.32 × 15,788.24
  4. Step 4: Simplify right side
    27,724.90x = 604,063,210.29
  5. Step 5: Solve for x
    x = 604,063,210.29/27,724.90
  6. Step 6: Final answer
    x = 21,787.75

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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.