Home / 31,117.26-42,598.20-30,894.90

Finding the Fourth Proportional to 31,117.26, 42,598.20 and 30,894.90

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Solution

The fourth proportional to 31,117.26, 42,598.20 and 30,894.90 is: 42,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,117.26 : 42,598.20 = 30,894.90 : x
  2. Step 2: Convert to fraction form
    31,117.26/42,598.20 = 30,894.90/x
  3. Step 3: Cross multiply
    31,117.26x = 42,598.20 × 30,894.90
  4. Step 4: Simplify right side
    31,117.26x = 1,316,067,129.18
  5. Step 5: Solve for x
    x = 1,316,067,129.18/31,117.26
  6. Step 6: Final answer
    x = 42,293.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.