Home / 20,746.13-31,131.95-10,892.48

Finding the Fourth Proportional to 20,746.13, 31,131.95 and 10,892.48

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Solution

The fourth proportional to 20,746.13, 31,131.95 and 10,892.48 is: 16,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.13 : 31,131.95 = 10,892.48 : x
  2. Step 2: Convert to fraction form
    20,746.13/31,131.95 = 10,892.48/x
  3. Step 3: Cross multiply
    20,746.13x = 31,131.95 × 10,892.48
  4. Step 4: Simplify right side
    20,746.13x = 339,103,932.61
  5. Step 5: Solve for x
    x = 339,103,932.61/20,746.13
  6. Step 6: Final answer
    x = 16,345.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.