Home / 29,298.20-40,431.30-15,869.16

Finding the Fourth Proportional to 29,298.20, 40,431.30 and 15,869.16

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Solution

The fourth proportional to 29,298.20, 40,431.30 and 15,869.16 is: 21,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,298.20 : 40,431.30 = 15,869.16 : x
  2. Step 2: Convert to fraction form
    29,298.20/40,431.30 = 15,869.16/x
  3. Step 3: Cross multiply
    29,298.20x = 40,431.30 × 15,869.16
  4. Step 4: Simplify right side
    29,298.20x = 641,610,768.71
  5. Step 5: Solve for x
    x = 641,610,768.71/29,298.20
  6. Step 6: Final answer
    x = 21,899.32

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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.