Home / 23,140.89-31,934.66-13,069.76

Finding the Fourth Proportional to 23,140.89, 31,934.66 and 13,069.76

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Solution

The fourth proportional to 23,140.89, 31,934.66 and 13,069.76 is: 18,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.89 : 31,934.66 = 13,069.76 : x
  2. Step 2: Convert to fraction form
    23,140.89/31,934.66 = 13,069.76/x
  3. Step 3: Cross multiply
    23,140.89x = 31,934.66 × 13,069.76
  4. Step 4: Simplify right side
    23,140.89x = 417,378,116.86
  5. Step 5: Solve for x
    x = 417,378,116.86/23,140.89
  6. Step 6: Final answer
    x = 18,036.39

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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.