Home / 21,445.32-29,591.70-12,371.00

Finding the Fourth Proportional to 21,445.32, 29,591.70 and 12,371.00

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Solution

The fourth proportional to 21,445.32, 29,591.70 and 12,371.00 is: 17,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.32 : 29,591.70 = 12,371.00 : x
  2. Step 2: Convert to fraction form
    21,445.32/29,591.70 = 12,371.00/x
  3. Step 3: Cross multiply
    21,445.32x = 29,591.70 × 12,371.00
  4. Step 4: Simplify right side
    21,445.32x = 366,078,772.74
  5. Step 5: Solve for x
    x = 366,078,772.74/21,445.32
  6. Step 6: Final answer
    x = 17,070.33

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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.