Home / 28,720.58-43,080.89-9,000.66

Finding the Fourth Proportional to 28,720.58, 43,080.89 and 9,000.66

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Solution

The fourth proportional to 28,720.58, 43,080.89 and 9,000.66 is: 13,501.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720.58 : 43,080.89 = 9,000.66 : x
  2. Step 2: Convert to fraction form
    28,720.58/43,080.89 = 9,000.66/x
  3. Step 3: Cross multiply
    28,720.58x = 43,080.89 × 9,000.66
  4. Step 4: Simplify right side
    28,720.58x = 387,756,559.94
  5. Step 5: Solve for x
    x = 387,756,559.94/28,720.58
  6. Step 6: Final answer
    x = 13,501.00

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Similar ratio
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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.