Home / 20,535.48-30,819.24-9,447.12

Finding the Fourth Proportional to 20,535.48, 30,819.24 and 9,447.12

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Solution

The fourth proportional to 20,535.48, 30,819.24 and 9,447.12 is: 14,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.48 : 30,819.24 = 9,447.12 : x
  2. Step 2: Convert to fraction form
    20,535.48/30,819.24 = 9,447.12/x
  3. Step 3: Cross multiply
    20,535.48x = 30,819.24 × 9,447.12
  4. Step 4: Simplify right side
    20,535.48x = 291,153,058.59
  5. Step 5: Solve for x
    x = 291,153,058.59/20,535.48
  6. Step 6: Final answer
    x = 14,178.05

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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.