Home / 28,990.32-43,497.86-12,358.19

Finding the Fourth Proportional to 28,990.32, 43,497.86 and 12,358.19

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Solution

The fourth proportional to 28,990.32, 43,497.86 and 12,358.19 is: 18,542.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.32 : 43,497.86 = 12,358.19 : x
  2. Step 2: Convert to fraction form
    28,990.32/43,497.86 = 12,358.19/x
  3. Step 3: Cross multiply
    28,990.32x = 43,497.86 × 12,358.19
  4. Step 4: Simplify right side
    28,990.32x = 537,554,690.27
  5. Step 5: Solve for x
    x = 537,554,690.27/28,990.32
  6. Step 6: Final answer
    x = 18,542.56

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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.