Home / 21,407.62-29,541.28-11,847.16

Finding the Fourth Proportional to 21,407.62, 29,541.28 and 11,847.16

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Solution

The fourth proportional to 21,407.62, 29,541.28 and 11,847.16 is: 16,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.62 : 29,541.28 = 11,847.16 : x
  2. Step 2: Convert to fraction form
    21,407.62/29,541.28 = 11,847.16/x
  3. Step 3: Cross multiply
    21,407.62x = 29,541.28 × 11,847.16
  4. Step 4: Simplify right side
    21,407.62x = 349,980,333.61
  5. Step 5: Solve for x
    x = 349,980,333.61/21,407.62
  6. Step 6: Final answer
    x = 16,348.40

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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.