Home / 28,646.53-42,972.09-10,885.70

Finding the Fourth Proportional to 28,646.53, 42,972.09 and 10,885.70

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Solution

The fourth proportional to 28,646.53, 42,972.09 and 10,885.70 is: 16,329.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.53 : 42,972.09 = 10,885.70 : x
  2. Step 2: Convert to fraction form
    28,646.53/42,972.09 = 10,885.70/x
  3. Step 3: Cross multiply
    28,646.53x = 42,972.09 × 10,885.70
  4. Step 4: Simplify right side
    28,646.53x = 467,781,387.54
  5. Step 5: Solve for x
    x = 467,781,387.54/28,646.53
  6. Step 6: Final answer
    x = 16,329.43

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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.