Home / 42,191.82-58,272.51-28,739.70

Finding the Fourth Proportional to 42,191.82, 58,272.51 and 28,739.70

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Solution

The fourth proportional to 42,191.82, 58,272.51 and 28,739.70 is: 39,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,191.82 : 58,272.51 = 28,739.70 : x
  2. Step 2: Convert to fraction form
    42,191.82/58,272.51 = 28,739.70/x
  3. Step 3: Cross multiply
    42,191.82x = 58,272.51 × 28,739.70
  4. Step 4: Simplify right side
    42,191.82x = 1,674,734,455.65
  5. Step 5: Solve for x
    x = 1,674,734,455.65/42,191.82
  6. Step 6: Final answer
    x = 39,693.34

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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.