Home / 21,141.04-29,174.98-11,580.76

Finding the Fourth Proportional to 21,141.04, 29,174.98 and 11,580.76

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Solution

The fourth proportional to 21,141.04, 29,174.98 and 11,580.76 is: 15,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141.04 : 29,174.98 = 11,580.76 : x
  2. Step 2: Convert to fraction form
    21,141.04/29,174.98 = 11,580.76/x
  3. Step 3: Cross multiply
    21,141.04x = 29,174.98 × 11,580.76
  4. Step 4: Simplify right side
    21,141.04x = 337,868,441.38
  5. Step 5: Solve for x
    x = 337,868,441.38/21,141.04
  6. Step 6: Final answer
    x = 15,981.64

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Half scale
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Double scale
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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.