Home / 42,698.11-58,915.62-29,990.12

Finding the Fourth Proportional to 42,698.11, 58,915.62 and 29,990.12

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Solution

The fourth proportional to 42,698.11, 58,915.62 and 29,990.12 is: 41,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,698.11 : 58,915.62 = 29,990.12 : x
  2. Step 2: Convert to fraction form
    42,698.11/58,915.62 = 29,990.12/x
  3. Step 3: Cross multiply
    42,698.11x = 58,915.62 × 29,990.12
  4. Step 4: Simplify right side
    42,698.11x = 1,766,886,219.10
  5. Step 5: Solve for x
    x = 1,766,886,219.10/42,698.11
  6. Step 6: Final answer
    x = 41,380.90

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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.