Home / 31,041.10-42,830.40-29,974.33

Finding the Fourth Proportional to 31,041.10, 42,830.40 and 29,974.33

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Solution

The fourth proportional to 31,041.10, 42,830.40 and 29,974.33 is: 41,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,041.10 : 42,830.40 = 29,974.33 : x
  2. Step 2: Convert to fraction form
    31,041.10/42,830.40 = 29,974.33/x
  3. Step 3: Cross multiply
    31,041.10x = 42,830.40 × 29,974.33
  4. Step 4: Simplify right side
    31,041.10x = 1,283,812,543.63
  5. Step 5: Solve for x
    x = 1,283,812,543.63/31,041.10
  6. Step 6: Final answer
    x = 41,358.47

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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.