Home / 45,657.43-63,047.34-28,691.08

Finding the Fourth Proportional to 45,657.43, 63,047.34 and 28,691.08

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Solution

The fourth proportional to 45,657.43, 63,047.34 and 28,691.08 is: 39,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,657.43 : 63,047.34 = 28,691.08 : x
  2. Step 2: Convert to fraction form
    45,657.43/63,047.34 = 28,691.08/x
  3. Step 3: Cross multiply
    45,657.43x = 63,047.34 × 28,691.08
  4. Step 4: Simplify right side
    45,657.43x = 1,808,896,118.11
  5. Step 5: Solve for x
    x = 1,808,896,118.11/45,657.43
  6. Step 6: Final answer
    x = 39,618.88

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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.