Home / 29,288.40-40,417.49-15,859.55

Finding the Fourth Proportional to 29,288.40, 40,417.49 and 15,859.55

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Solution

The fourth proportional to 29,288.40, 40,417.49 and 15,859.55 is: 21,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.40 : 40,417.49 = 15,859.55 : x
  2. Step 2: Convert to fraction form
    29,288.40/40,417.49 = 15,859.55/x
  3. Step 3: Cross multiply
    29,288.40x = 40,417.49 × 15,859.55
  4. Step 4: Simplify right side
    29,288.40x = 641,002,922.14
  5. Step 5: Solve for x
    x = 641,002,922.14/29,288.40
  6. Step 6: Final answer
    x = 21,885.90

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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.