Home / 23,109.13-31,890.48-12,498.53

Finding the Fourth Proportional to 23,109.13, 31,890.48 and 12,498.53

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Solution

The fourth proportional to 23,109.13, 31,890.48 and 12,498.53 is: 17,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,109.13 : 31,890.48 = 12,498.53 : x
  2. Step 2: Convert to fraction form
    23,109.13/31,890.48 = 12,498.53/x
  3. Step 3: Cross multiply
    23,109.13x = 31,890.48 × 12,498.53
  4. Step 4: Simplify right side
    23,109.13x = 398,584,120.99
  5. Step 5: Solve for x
    x = 398,584,120.99/23,109.13
  6. Step 6: Final answer
    x = 17,247.91

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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.