Home / 27,531.10-38,008.68-18,127

Finding the Fourth Proportional to 27,531.10, 38,008.68 and 18,127

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Solution

The fourth proportional to 27,531.10, 38,008.68 and 18,127 is: 25,025.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,531.10 : 38,008.68 = 18,127 : x
  2. Step 2: Convert to fraction form
    27,531.10/38,008.68 = 18,127/x
  3. Step 3: Cross multiply
    27,531.10x = 38,008.68 × 18,127
  4. Step 4: Simplify right side
    27,531.10x = 688,983,342.36
  5. Step 5: Solve for x
    x = 688,983,342.36/27,531.10
  6. Step 6: Final answer
    x = 25,025.64

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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.