Home / 31,279.20-46,902.60-11,547.60

Finding the Fourth Proportional to 31,279.20, 46,902.60 and 11,547.60

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Solution

The fourth proportional to 31,279.20, 46,902.60 and 11,547.60 is: 17,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.20 : 46,902.60 = 11,547.60 : x
  2. Step 2: Convert to fraction form
    31,279.20/46,902.60 = 11,547.60/x
  3. Step 3: Cross multiply
    31,279.20x = 46,902.60 × 11,547.60
  4. Step 4: Simplify right side
    31,279.20x = 541,612,463.76
  5. Step 5: Solve for x
    x = 541,612,463.76/31,279.20
  6. Step 6: Final answer
    x = 17,315.42

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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.