Home / 27,736.20-38,275.07-15,802.47

Finding the Fourth Proportional to 27,736.20, 38,275.07 and 15,802.47

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Solution

The fourth proportional to 27,736.20, 38,275.07 and 15,802.47 is: 21,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736.20 : 38,275.07 = 15,802.47 : x
  2. Step 2: Convert to fraction form
    27,736.20/38,275.07 = 15,802.47/x
  3. Step 3: Cross multiply
    27,736.20x = 38,275.07 × 15,802.47
  4. Step 4: Simplify right side
    27,736.20x = 604,840,566.41
  5. Step 5: Solve for x
    x = 604,840,566.41/27,736.20
  6. Step 6: Final answer
    x = 21,806.90

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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.