Home / 39,703.30-54,711.57-28,340.74

Finding the Fourth Proportional to 39,703.30, 54,711.57 and 28,340.74

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Solution

The fourth proportional to 39,703.30, 54,711.57 and 28,340.74 is: 39,053.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.30 : 54,711.57 = 28,340.74 : x
  2. Step 2: Convert to fraction form
    39,703.30/54,711.57 = 28,340.74/x
  3. Step 3: Cross multiply
    39,703.30x = 54,711.57 × 28,340.74
  4. Step 4: Simplify right side
    39,703.30x = 1,550,566,380.36
  5. Step 5: Solve for x
    x = 1,550,566,380.36/39,703.30
  6. Step 6: Final answer
    x = 39,053.84

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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.