Home / 55,043.20-82,565.12-13,490.24

Finding the Fourth Proportional to 55,043.20, 82,565.12 and 13,490.24

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Solution

The fourth proportional to 55,043.20, 82,565.12 and 13,490.24 is: 20,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,043.20 : 82,565.12 = 13,490.24 : x
  2. Step 2: Convert to fraction form
    55,043.20/82,565.12 = 13,490.24/x
  3. Step 3: Cross multiply
    55,043.20x = 82,565.12 × 13,490.24
  4. Step 4: Simplify right side
    55,043.20x = 1,113,823,284.43
  5. Step 5: Solve for x
    x = 1,113,823,284.43/55,043.20
  6. Step 6: Final answer
    x = 20,235.44

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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.