Home / 31,279.08-46,889.46-10,488

Finding the Fourth Proportional to 31,279.08, 46,889.46 and 10,488

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Solution

The fourth proportional to 31,279.08, 46,889.46 and 10,488 is: 15,722.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.08 : 46,889.46 = 10,488 : x
  2. Step 2: Convert to fraction form
    31,279.08/46,889.46 = 10,488/x
  3. Step 3: Cross multiply
    31,279.08x = 46,889.46 × 10,488
  4. Step 4: Simplify right side
    31,279.08x = 491,776,656.48
  5. Step 5: Solve for x
    x = 491,776,656.48/31,279.08
  6. Step 6: Final answer
    x = 15,722.22

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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.