Home / 27,743.13-38,281.05-15,806.70

Finding the Fourth Proportional to 27,743.13, 38,281.05 and 15,806.70

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Solution

The fourth proportional to 27,743.13, 38,281.05 and 15,806.70 is: 21,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,743.13 : 38,281.05 = 15,806.70 : x
  2. Step 2: Convert to fraction form
    27,743.13/38,281.05 = 15,806.70/x
  3. Step 3: Cross multiply
    27,743.13x = 38,281.05 × 15,806.70
  4. Step 4: Simplify right side
    27,743.13x = 605,097,073.04
  5. Step 5: Solve for x
    x = 605,097,073.04/27,743.13
  6. Step 6: Final answer
    x = 21,810.70

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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.