Home / 29,288.32-40,417.56-15,859.20

Finding the Fourth Proportional to 29,288.32, 40,417.56 and 15,859.20

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Solution

The fourth proportional to 29,288.32, 40,417.56 and 15,859.20 is: 21,885.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.32 : 40,417.56 = 15,859.20 : x
  2. Step 2: Convert to fraction form
    29,288.32/40,417.56 = 15,859.20/x
  3. Step 3: Cross multiply
    29,288.32x = 40,417.56 × 15,859.20
  4. Step 4: Simplify right side
    29,288.32x = 640,990,167.55
  5. Step 5: Solve for x
    x = 640,990,167.55/29,288.32
  6. Step 6: Final answer
    x = 21,885.52

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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.