Home / 23,140.61-31,933.40-13,709.17

Finding the Fourth Proportional to 23,140.61, 31,933.40 and 13,709.17

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Solution

The fourth proportional to 23,140.61, 31,933.40 and 13,709.17 is: 18,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.61 : 31,933.40 = 13,709.17 : x
  2. Step 2: Convert to fraction form
    23,140.61/31,933.40 = 13,709.17/x
  3. Step 3: Cross multiply
    23,140.61x = 31,933.40 × 13,709.17
  4. Step 4: Simplify right side
    23,140.61x = 437,780,566.85
  5. Step 5: Solve for x
    x = 437,780,566.85/23,140.61
  6. Step 6: Final answer
    x = 18,918.28

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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.