Home / 28,718.05-43,077.10-8,998.15

Finding the Fourth Proportional to 28,718.05, 43,077.10 and 8,998.15

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Solution

The fourth proportional to 28,718.05, 43,077.10 and 8,998.15 is: 13,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.05 : 43,077.10 = 8,998.15 : x
  2. Step 2: Convert to fraction form
    28,718.05/43,077.10 = 8,998.15/x
  3. Step 3: Cross multiply
    28,718.05x = 43,077.10 × 8,998.15
  4. Step 4: Simplify right side
    28,718.05x = 387,613,946.99
  5. Step 5: Solve for x
    x = 387,613,946.99/28,718.05
  6. Step 6: Final answer
    x = 13,497.22

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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.