Home / 28,721.08-43,081.64-9,001.17

Finding the Fourth Proportional to 28,721.08, 43,081.64 and 9,001.17

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Solution

The fourth proportional to 28,721.08, 43,081.64 and 9,001.17 is: 13,501.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.08 : 43,081.64 = 9,001.17 : x
  2. Step 2: Convert to fraction form
    28,721.08/43,081.64 = 9,001.17/x
  3. Step 3: Cross multiply
    28,721.08x = 43,081.64 × 9,001.17
  4. Step 4: Simplify right side
    28,721.08x = 387,784,905.10
  5. Step 5: Solve for x
    x = 387,784,905.10/28,721.08
  6. Step 6: Final answer
    x = 13,501.75

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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.