Home / 21,657.08-29,887.26-12,711.03

Finding the Fourth Proportional to 21,657.08, 29,887.26 and 12,711.03

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Solution

The fourth proportional to 21,657.08, 29,887.26 and 12,711.03 is: 17,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.08 : 29,887.26 = 12,711.03 : x
  2. Step 2: Convert to fraction form
    21,657.08/29,887.26 = 12,711.03/x
  3. Step 3: Cross multiply
    21,657.08x = 29,887.26 × 12,711.03
  4. Step 4: Simplify right side
    21,657.08x = 379,897,794.92
  5. Step 5: Solve for x
    x = 379,897,794.92/21,657.08
  6. Step 6: Final answer
    x = 17,541.51

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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.