Home / 27,883.69-38,478.18-15,136.59

Finding the Fourth Proportional to 27,883.69, 38,478.18 and 15,136.59

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Solution

The fourth proportional to 27,883.69, 38,478.18 and 15,136.59 is: 20,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,883.69 : 38,478.18 = 15,136.59 : x
  2. Step 2: Convert to fraction form
    27,883.69/38,478.18 = 15,136.59/x
  3. Step 3: Cross multiply
    27,883.69x = 38,478.18 × 15,136.59
  4. Step 4: Simplify right side
    27,883.69x = 582,428,242.22
  5. Step 5: Solve for x
    x = 582,428,242.22/27,883.69
  6. Step 6: Final answer
    x = 20,887.77

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Double scale
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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.