Home / 29,288.28-40,417.80-15,859.50

Finding the Fourth Proportional to 29,288.28, 40,417.80 and 15,859.50

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Solution

The fourth proportional to 29,288.28, 40,417.80 and 15,859.50 is: 21,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.28 : 40,417.80 = 15,859.50 : x
  2. Step 2: Convert to fraction form
    29,288.28/40,417.80 = 15,859.50/x
  3. Step 3: Cross multiply
    29,288.28x = 40,417.80 × 15,859.50
  4. Step 4: Simplify right side
    29,288.28x = 641,006,099.10
  5. Step 5: Solve for x
    x = 641,006,099.10/29,288.28
  6. Step 6: Final answer
    x = 21,886.10

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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.