Home / 27,988.66-38,612.07-18,416.23

Finding the Fourth Proportional to 27,988.66, 38,612.07 and 18,416.23

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Solution

The fourth proportional to 27,988.66, 38,612.07 and 18,416.23 is: 25,406.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.66 : 38,612.07 = 18,416.23 : x
  2. Step 2: Convert to fraction form
    27,988.66/38,612.07 = 18,416.23/x
  3. Step 3: Cross multiply
    27,988.66x = 38,612.07 × 18,416.23
  4. Step 4: Simplify right side
    27,988.66x = 711,088,761.90
  5. Step 5: Solve for x
    x = 711,088,761.90/27,988.66
  6. Step 6: Final answer
    x = 25,406.32

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Similar ratio
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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.