Home / 31,312.28-42,946.38-29,617.76

Finding the Fourth Proportional to 31,312.28, 42,946.38 and 29,617.76

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Solution

The fourth proportional to 31,312.28, 42,946.38 and 29,617.76 is: 40,622.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.28 : 42,946.38 = 29,617.76 : x
  2. Step 2: Convert to fraction form
    31,312.28/42,946.38 = 29,617.76/x
  3. Step 3: Cross multiply
    31,312.28x = 42,946.38 × 29,617.76
  4. Step 4: Simplify right side
    31,312.28x = 1,271,975,575.71
  5. Step 5: Solve for x
    x = 1,271,975,575.71/31,312.28
  6. Step 6: Final answer
    x = 40,622.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.