Home / 42,288.12-63,441.54-14,209.20

Finding the Fourth Proportional to 42,288.12, 63,441.54 and 14,209.20

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Solution

The fourth proportional to 42,288.12, 63,441.54 and 14,209.20 is: 21,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,288.12 : 63,441.54 = 14,209.20 : x
  2. Step 2: Convert to fraction form
    42,288.12/63,441.54 = 14,209.20/x
  3. Step 3: Cross multiply
    42,288.12x = 63,441.54 × 14,209.20
  4. Step 4: Simplify right side
    42,288.12x = 901,453,530.17
  5. Step 5: Solve for x
    x = 901,453,530.17/42,288.12
  6. Step 6: Final answer
    x = 21,316.95

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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.