Home / 28,158.01-42,206.64-18,304.36

Finding the Fourth Proportional to 28,158.01, 42,206.64 and 18,304.36

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Solution

The fourth proportional to 28,158.01, 42,206.64 and 18,304.36 is: 27,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.01 : 42,206.64 = 18,304.36 : x
  2. Step 2: Convert to fraction form
    28,158.01/42,206.64 = 18,304.36/x
  3. Step 3: Cross multiply
    28,158.01x = 42,206.64 × 18,304.36
  4. Step 4: Simplify right side
    28,158.01x = 772,565,532.95
  5. Step 5: Solve for x
    x = 772,565,532.95/28,158.01
  6. Step 6: Final answer
    x = 27,436.79

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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.