Home / 28,008.10-42,012.15-13,962.70

Finding the Fourth Proportional to 28,008.10, 42,012.15 and 13,962.70

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Solution

The fourth proportional to 28,008.10, 42,012.15 and 13,962.70 is: 20,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.10 : 42,012.15 = 13,962.70 : x
  2. Step 2: Convert to fraction form
    28,008.10/42,012.15 = 13,962.70/x
  3. Step 3: Cross multiply
    28,008.10x = 42,012.15 × 13,962.70
  4. Step 4: Simplify right side
    28,008.10x = 586,603,046.81
  5. Step 5: Solve for x
    x = 586,603,046.81/28,008.10
  6. Step 6: Final answer
    x = 20,944.05

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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.