Home / 21,045.20-29,041.80-11,613.08

Finding the Fourth Proportional to 21,045.20, 29,041.80 and 11,613.08

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Solution

The fourth proportional to 21,045.20, 29,041.80 and 11,613.08 is: 16,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.20 : 29,041.80 = 11,613.08 : x
  2. Step 2: Convert to fraction form
    21,045.20/29,041.80 = 11,613.08/x
  3. Step 3: Cross multiply
    21,045.20x = 29,041.80 × 11,613.08
  4. Step 4: Simplify right side
    21,045.20x = 337,264,746.74
  5. Step 5: Solve for x
    x = 337,264,746.74/21,045.20
  6. Step 6: Final answer
    x = 16,025.73

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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.