Home / 28,461.28-42,693.97-10,931.11

Finding the Fourth Proportional to 28,461.28, 42,693.97 and 10,931.11

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Solution

The fourth proportional to 28,461.28, 42,693.97 and 10,931.11 is: 16,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.28 : 42,693.97 = 10,931.11 : x
  2. Step 2: Convert to fraction form
    28,461.28/42,693.97 = 10,931.11/x
  3. Step 3: Cross multiply
    28,461.28x = 42,693.97 × 10,931.11
  4. Step 4: Simplify right side
    28,461.28x = 466,692,241.61
  5. Step 5: Solve for x
    x = 466,692,241.61/28,461.28
  6. Step 6: Final answer
    x = 16,397.45

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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.