Home / 28,890.76-43,335.98-9,170.83

Finding the Fourth Proportional to 28,890.76, 43,335.98 and 9,170.83

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Solution

The fourth proportional to 28,890.76, 43,335.98 and 9,170.83 is: 13,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.76 : 43,335.98 = 9,170.83 : x
  2. Step 2: Convert to fraction form
    28,890.76/43,335.98 = 9,170.83/x
  3. Step 3: Cross multiply
    28,890.76x = 43,335.98 × 9,170.83
  4. Step 4: Simplify right side
    28,890.76x = 397,426,905.46
  5. Step 5: Solve for x
    x = 397,426,905.46/28,890.76
  6. Step 6: Final answer
    x = 13,756.20

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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.