Home / 29,212.28-40,312.92-15,964.28

Finding the Fourth Proportional to 29,212.28, 40,312.92 and 15,964.28

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Solution

The fourth proportional to 29,212.28, 40,312.92 and 15,964.28 is: 22,030.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,212.28 : 40,312.92 = 15,964.28 : x
  2. Step 2: Convert to fraction form
    29,212.28/40,312.92 = 15,964.28/x
  3. Step 3: Cross multiply
    29,212.28x = 40,312.92 × 15,964.28
  4. Step 4: Simplify right side
    29,212.28x = 643,566,742.50
  5. Step 5: Solve for x
    x = 643,566,742.50/29,212.28
  6. Step 6: Final answer
    x = 22,030.69

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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.