Home / 21,125.16-29,151.66-11,693.52

Finding the Fourth Proportional to 21,125.16, 29,151.66 and 11,693.52

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Solution

The fourth proportional to 21,125.16, 29,151.66 and 11,693.52 is: 16,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,125.16 : 29,151.66 = 11,693.52 : x
  2. Step 2: Convert to fraction form
    21,125.16/29,151.66 = 11,693.52/x
  3. Step 3: Cross multiply
    21,125.16x = 29,151.66 × 11,693.52
  4. Step 4: Simplify right side
    21,125.16x = 340,885,519.24
  5. Step 5: Solve for x
    x = 340,885,519.24/21,125.16
  6. Step 6: Final answer
    x = 16,136.47

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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.