Home / 28,373.91-42,559.26-12,574.39

Finding the Fourth Proportional to 28,373.91, 42,559.26 and 12,574.39

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Solution

The fourth proportional to 28,373.91, 42,559.26 and 12,574.39 is: 18,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.91 : 42,559.26 = 12,574.39 : x
  2. Step 2: Convert to fraction form
    28,373.91/42,559.26 = 12,574.39/x
  3. Step 3: Cross multiply
    28,373.91x = 42,559.26 × 12,574.39
  4. Step 4: Simplify right side
    28,373.91x = 535,156,733.35
  5. Step 5: Solve for x
    x = 535,156,733.35/28,373.91
  6. Step 6: Final answer
    x = 18,860.87

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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.