Home / 21,545.08-29,730.18-12,114.52

Finding the Fourth Proportional to 21,545.08, 29,730.18 and 12,114.52

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Solution

The fourth proportional to 21,545.08, 29,730.18 and 12,114.52 is: 16,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545.08 : 29,730.18 = 12,114.52 : x
  2. Step 2: Convert to fraction form
    21,545.08/29,730.18 = 12,114.52/x
  3. Step 3: Cross multiply
    21,545.08x = 29,730.18 × 12,114.52
  4. Step 4: Simplify right side
    21,545.08x = 360,166,860.21
  5. Step 5: Solve for x
    x = 360,166,860.21/21,545.08
  6. Step 6: Final answer
    x = 16,716.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.