Home / 21,458.02-29,613.45-12,025.78

Finding the Fourth Proportional to 21,458.02, 29,613.45 and 12,025.78

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Solution

The fourth proportional to 21,458.02, 29,613.45 and 12,025.78 is: 16,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.02 : 29,613.45 = 12,025.78 : x
  2. Step 2: Convert to fraction form
    21,458.02/29,613.45 = 12,025.78/x
  3. Step 3: Cross multiply
    21,458.02x = 29,613.45 × 12,025.78
  4. Step 4: Simplify right side
    21,458.02x = 356,124,834.74
  5. Step 5: Solve for x
    x = 356,124,834.74/21,458.02
  6. Step 6: Final answer
    x = 16,596.35

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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.