Home / 21,501.76-29,671.68-12,549.52

Finding the Fourth Proportional to 21,501.76, 29,671.68 and 12,549.52

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Solution

The fourth proportional to 21,501.76, 29,671.68 and 12,549.52 is: 17,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,501.76 : 29,671.68 = 12,549.52 : x
  2. Step 2: Convert to fraction form
    21,501.76/29,671.68 = 12,549.52/x
  3. Step 3: Cross multiply
    21,501.76x = 29,671.68 × 12,549.52
  4. Step 4: Simplify right side
    21,501.76x = 372,365,341.59
  5. Step 5: Solve for x
    x = 372,365,341.59/21,501.76
  6. Step 6: Final answer
    x = 17,317.90

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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.