Home / 27,555-38,025.81-14,979.66

Finding the Fourth Proportional to 27,555, 38,025.81 and 14,979.66

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Solution

The fourth proportional to 27,555, 38,025.81 and 14,979.66 is: 20,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555 : 38,025.81 = 14,979.66 : x
  2. Step 2: Convert to fraction form
    27,555/38,025.81 = 14,979.66/x
  3. Step 3: Cross multiply
    27,555x = 38,025.81 × 14,979.66
  4. Step 4: Simplify right side
    27,555x = 569,613,705.02
  5. Step 5: Solve for x
    x = 569,613,705.02/27,555
  6. Step 6: Final answer
    x = 20,671.88

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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.