Home / 28,052.16-42,049.80-18,197.72

Finding the Fourth Proportional to 28,052.16, 42,049.80 and 18,197.72

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Solution

The fourth proportional to 28,052.16, 42,049.80 and 18,197.72 is: 27,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.16 : 42,049.80 = 18,197.72 : x
  2. Step 2: Convert to fraction form
    28,052.16/42,049.80 = 18,197.72/x
  3. Step 3: Cross multiply
    28,052.16x = 42,049.80 × 18,197.72
  4. Step 4: Simplify right side
    28,052.16x = 765,210,486.46
  5. Step 5: Solve for x
    x = 765,210,486.46/28,052.16
  6. Step 6: Final answer
    x = 27,278.13

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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.