Home / 27,685.69-38,205.71-15,110.53

Finding the Fourth Proportional to 27,685.69, 38,205.71 and 15,110.53

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Solution

The fourth proportional to 27,685.69, 38,205.71 and 15,110.53 is: 20,852.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,685.69 : 38,205.71 = 15,110.53 : x
  2. Step 2: Convert to fraction form
    27,685.69/38,205.71 = 15,110.53/x
  3. Step 3: Cross multiply
    27,685.69x = 38,205.71 × 15,110.53
  4. Step 4: Simplify right side
    27,685.69x = 577,308,527.13
  5. Step 5: Solve for x
    x = 577,308,527.13/27,685.69
  6. Step 6: Final answer
    x = 20,852.24

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Half scale
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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.