Home / 20,340.14-28,068.03-11,386.13

Finding the Fourth Proportional to 20,340.14, 28,068.03 and 11,386.13

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Solution

The fourth proportional to 20,340.14, 28,068.03 and 11,386.13 is: 15,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.14 : 28,068.03 = 11,386.13 : x
  2. Step 2: Convert to fraction form
    20,340.14/28,068.03 = 11,386.13/x
  3. Step 3: Cross multiply
    20,340.14x = 28,068.03 × 11,386.13
  4. Step 4: Simplify right side
    20,340.14x = 319,586,098.08
  5. Step 5: Solve for x
    x = 319,586,098.08/20,340.14
  6. Step 6: Final answer
    x = 15,712.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.