Home / 28,066.92-38,723.30-18,637.36

Finding the Fourth Proportional to 28,066.92, 38,723.30 and 18,637.36

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Solution

The fourth proportional to 28,066.92, 38,723.30 and 18,637.36 is: 25,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.92 : 38,723.30 = 18,637.36 : x
  2. Step 2: Convert to fraction form
    28,066.92/38,723.30 = 18,637.36/x
  3. Step 3: Cross multiply
    28,066.92x = 38,723.30 × 18,637.36
  4. Step 4: Simplify right side
    28,066.92x = 721,700,082.49
  5. Step 5: Solve for x
    x = 721,700,082.49/28,066.92
  6. Step 6: Final answer
    x = 25,713.55

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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.