Home / 23,126.58-31,911.03-13,565.79

Finding the Fourth Proportional to 23,126.58, 31,911.03 and 13,565.79

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Solution

The fourth proportional to 23,126.58, 31,911.03 and 13,565.79 is: 18,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.58 : 31,911.03 = 13,565.79 : x
  2. Step 2: Convert to fraction form
    23,126.58/31,911.03 = 13,565.79/x
  3. Step 3: Cross multiply
    23,126.58x = 31,911.03 × 13,565.79
  4. Step 4: Simplify right side
    23,126.58x = 432,898,331.66
  5. Step 5: Solve for x
    x = 432,898,331.66/23,126.58
  6. Step 6: Final answer
    x = 18,718.65

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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.