Home / 28,693.17-43,121.70-28,529.10

Finding the Fourth Proportional to 28,693.17, 43,121.70 and 28,529.10

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Solution

The fourth proportional to 28,693.17, 43,121.70 and 28,529.10 is: 42,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.17 : 43,121.70 = 28,529.10 : x
  2. Step 2: Convert to fraction form
    28,693.17/43,121.70 = 28,529.10/x
  3. Step 3: Cross multiply
    28,693.17x = 43,121.70 × 28,529.10
  4. Step 4: Simplify right side
    28,693.17x = 1,230,223,291.47
  5. Step 5: Solve for x
    x = 1,230,223,291.47/28,693.17
  6. Step 6: Final answer
    x = 42,875.13

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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.