Home / 31,426.10-43,368.01-17,279.86

Finding the Fourth Proportional to 31,426.10, 43,368.01 and 17,279.86

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Solution

The fourth proportional to 31,426.10, 43,368.01 and 17,279.86 is: 23,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.10 : 43,368.01 = 17,279.86 : x
  2. Step 2: Convert to fraction form
    31,426.10/43,368.01 = 17,279.86/x
  3. Step 3: Cross multiply
    31,426.10x = 43,368.01 × 17,279.86
  4. Step 4: Simplify right side
    31,426.10x = 749,393,141.28
  5. Step 5: Solve for x
    x = 749,393,141.28/31,426.10
  6. Step 6: Final answer
    x = 23,846.20

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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.