Home / 27,724.12-38,259.65-15,787.50

Finding the Fourth Proportional to 27,724.12, 38,259.65 and 15,787.50

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Solution

The fourth proportional to 27,724.12, 38,259.65 and 15,787.50 is: 21,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.12 : 38,259.65 = 15,787.50 : x
  2. Step 2: Convert to fraction form
    27,724.12/38,259.65 = 15,787.50/x
  3. Step 3: Cross multiply
    27,724.12x = 38,259.65 × 15,787.50
  4. Step 4: Simplify right side
    27,724.12x = 604,024,407.32
  5. Step 5: Solve for x
    x = 604,024,407.32/27,724.12
  6. Step 6: Final answer
    x = 21,786.97

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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.