Home / 21,068.46-29,073.27-12,580.16

Finding the Fourth Proportional to 21,068.46, 29,073.27 and 12,580.16

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Solution

The fourth proportional to 21,068.46, 29,073.27 and 12,580.16 is: 17,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.46 : 29,073.27 = 12,580.16 : x
  2. Step 2: Convert to fraction form
    21,068.46/29,073.27 = 12,580.16/x
  3. Step 3: Cross multiply
    21,068.46x = 29,073.27 × 12,580.16
  4. Step 4: Simplify right side
    21,068.46x = 365,746,242.96
  5. Step 5: Solve for x
    x = 365,746,242.96/21,068.46
  6. Step 6: Final answer
    x = 17,359.89

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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.