Home / 28,985.95-43,481.61-8,995.57

Finding the Fourth Proportional to 28,985.95, 43,481.61 and 8,995.57

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Solution

The fourth proportional to 28,985.95, 43,481.61 and 8,995.57 is: 13,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.95 : 43,481.61 = 8,995.57 : x
  2. Step 2: Convert to fraction form
    28,985.95/43,481.61 = 8,995.57/x
  3. Step 3: Cross multiply
    28,985.95x = 43,481.61 × 8,995.57
  4. Step 4: Simplify right side
    28,985.95x = 391,141,866.47
  5. Step 5: Solve for x
    x = 391,141,866.47/28,985.95
  6. Step 6: Final answer
    x = 13,494.19

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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.