Home / 23,108.83-31,890.16-12,498.45

Finding the Fourth Proportional to 23,108.83, 31,890.16 and 12,498.45

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Solution

The fourth proportional to 23,108.83, 31,890.16 and 12,498.45 is: 17,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,108.83 : 31,890.16 = 12,498.45 : x
  2. Step 2: Convert to fraction form
    23,108.83/31,890.16 = 12,498.45/x
  3. Step 3: Cross multiply
    23,108.83x = 31,890.16 × 12,498.45
  4. Step 4: Simplify right side
    23,108.83x = 398,577,570.25
  5. Step 5: Solve for x
    x = 398,577,570.25/23,108.83
  6. Step 6: Final answer
    x = 17,247.85

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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.