Home / 28,066.56-42,031.20-18,176.16

Finding the Fourth Proportional to 28,066.56, 42,031.20 and 18,176.16

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Solution

The fourth proportional to 28,066.56, 42,031.20 and 18,176.16 is: 27,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.56 : 42,031.20 = 18,176.16 : x
  2. Step 2: Convert to fraction form
    28,066.56/42,031.20 = 18,176.16/x
  3. Step 3: Cross multiply
    28,066.56x = 42,031.20 × 18,176.16
  4. Step 4: Simplify right side
    28,066.56x = 763,965,816.19
  5. Step 5: Solve for x
    x = 763,965,816.19/28,066.56
  6. Step 6: Final answer
    x = 27,219.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.