Home / 27,732.61-38,277.87-15,803.02

Finding the Fourth Proportional to 27,732.61, 38,277.87 and 15,803.02

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Solution

The fourth proportional to 27,732.61, 38,277.87 and 15,803.02 is: 21,812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,732.61 : 38,277.87 = 15,803.02 : x
  2. Step 2: Convert to fraction form
    27,732.61/38,277.87 = 15,803.02/x
  3. Step 3: Cross multiply
    27,732.61x = 38,277.87 × 15,803.02
  4. Step 4: Simplify right side
    27,732.61x = 604,905,753.78
  5. Step 5: Solve for x
    x = 604,905,753.78/27,732.61
  6. Step 6: Final answer
    x = 21,812.08

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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.