Home / 31,279.12-46,903.64-10,488.08

Finding the Fourth Proportional to 31,279.12, 46,903.64 and 10,488.08

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Solution

The fourth proportional to 31,279.12, 46,903.64 and 10,488.08 is: 15,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.12 : 46,903.64 = 10,488.08 : x
  2. Step 2: Convert to fraction form
    31,279.12/46,903.64 = 10,488.08/x
  3. Step 3: Cross multiply
    31,279.12x = 46,903.64 × 10,488.08
  4. Step 4: Simplify right side
    31,279.12x = 491,929,128.61
  5. Step 5: Solve for x
    x = 491,929,128.61/31,279.12
  6. Step 6: Final answer
    x = 15,727.08

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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.