Home / 28,182.44-42,261.18-12,589.16

Finding the Fourth Proportional to 28,182.44, 42,261.18 and 12,589.16

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Solution

The fourth proportional to 28,182.44, 42,261.18 and 12,589.16 is: 18,878.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.44 : 42,261.18 = 12,589.16 : x
  2. Step 2: Convert to fraction form
    28,182.44/42,261.18 = 12,589.16/x
  3. Step 3: Cross multiply
    28,182.44x = 42,261.18 × 12,589.16
  4. Step 4: Simplify right side
    28,182.44x = 532,032,756.81
  5. Step 5: Solve for x
    x = 532,032,756.81/28,182.44
  6. Step 6: Final answer
    x = 18,878.17

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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.