Home / 42,338.26-58,454.36-28,904.61

Finding the Fourth Proportional to 42,338.26, 58,454.36 and 28,904.61

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Solution

The fourth proportional to 42,338.26, 58,454.36 and 28,904.61 is: 39,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,338.26 : 58,454.36 = 28,904.61 : x
  2. Step 2: Convert to fraction form
    42,338.26/58,454.36 = 28,904.61/x
  3. Step 3: Cross multiply
    42,338.26x = 58,454.36 × 28,904.61
  4. Step 4: Simplify right side
    42,338.26x = 1,689,600,478.60
  5. Step 5: Solve for x
    x = 1,689,600,478.60/42,338.26
  6. Step 6: Final answer
    x = 39,907.18

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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.