Home / 47,565.12-71,355.87-15,978.21

Finding the Fourth Proportional to 47,565.12, 71,355.87 and 15,978.21

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Solution

The fourth proportional to 47,565.12, 71,355.87 and 15,978.21 is: 23,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,565.12 : 71,355.87 = 15,978.21 : x
  2. Step 2: Convert to fraction form
    47,565.12/71,355.87 = 15,978.21/x
  3. Step 3: Cross multiply
    47,565.12x = 71,355.87 × 15,978.21
  4. Step 4: Simplify right side
    47,565.12x = 1,140,139,214.04
  5. Step 5: Solve for x
    x = 1,140,139,214.04/47,565.12
  6. Step 6: Final answer
    x = 23,970.07

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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.