Home / 28,545.24-42,788.55-14,479.32

Finding the Fourth Proportional to 28,545.24, 42,788.55 and 14,479.32

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Solution

The fourth proportional to 28,545.24, 42,788.55 and 14,479.32 is: 21,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.24 : 42,788.55 = 14,479.32 : x
  2. Step 2: Convert to fraction form
    28,545.24/42,788.55 = 14,479.32/x
  3. Step 3: Cross multiply
    28,545.24x = 42,788.55 × 14,479.32
  4. Step 4: Simplify right side
    28,545.24x = 619,549,107.79
  5. Step 5: Solve for x
    x = 619,549,107.79/28,545.24
  6. Step 6: Final answer
    x = 21,704.11

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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.