Home / 31,507.78-47,210.36-13,482.04

Finding the Fourth Proportional to 31,507.78, 47,210.36 and 13,482.04

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Solution

The fourth proportional to 31,507.78, 47,210.36 and 13,482.04 is: 20,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.78 : 47,210.36 = 13,482.04 : x
  2. Step 2: Convert to fraction form
    31,507.78/47,210.36 = 13,482.04/x
  3. Step 3: Cross multiply
    31,507.78x = 47,210.36 × 13,482.04
  4. Step 4: Simplify right side
    31,507.78x = 636,491,961.93
  5. Step 5: Solve for x
    x = 636,491,961.93/31,507.78
  6. Step 6: Final answer
    x = 20,201.10

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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.