Home / 28,810.59-43,215.85-9,090.69

Finding the Fourth Proportional to 28,810.59, 43,215.85 and 9,090.69

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Solution

The fourth proportional to 28,810.59, 43,215.85 and 9,090.69 is: 13,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.59 : 43,215.85 = 9,090.69 : x
  2. Step 2: Convert to fraction form
    28,810.59/43,215.85 = 9,090.69/x
  3. Step 3: Cross multiply
    28,810.59x = 43,215.85 × 9,090.69
  4. Step 4: Simplify right side
    28,810.59x = 392,861,895.44
  5. Step 5: Solve for x
    x = 392,861,895.44/28,810.59
  6. Step 6: Final answer
    x = 13,636.02

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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.