Home / 31,218.08-43,080.27-17,070.90

Finding the Fourth Proportional to 31,218.08, 43,080.27 and 17,070.90

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Solution

The fourth proportional to 31,218.08, 43,080.27 and 17,070.90 is: 23,557.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218.08 : 43,080.27 = 17,070.90 : x
  2. Step 2: Convert to fraction form
    31,218.08/43,080.27 = 17,070.90/x
  3. Step 3: Cross multiply
    31,218.08x = 43,080.27 × 17,070.90
  4. Step 4: Simplify right side
    31,218.08x = 735,418,981.14
  5. Step 5: Solve for x
    x = 735,418,981.14/31,218.08
  6. Step 6: Final answer
    x = 23,557.47

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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.