Home / 27,525.10-38,000.40-18,121

Finding the Fourth Proportional to 27,525.10, 38,000.40 and 18,121

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Solution

The fourth proportional to 27,525.10, 38,000.40 and 18,121 is: 25,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,525.10 : 38,000.40 = 18,121 : x
  2. Step 2: Convert to fraction form
    27,525.10/38,000.40 = 18,121/x
  3. Step 3: Cross multiply
    27,525.10x = 38,000.40 × 18,121
  4. Step 4: Simplify right side
    27,525.10x = 688,605,248.40
  5. Step 5: Solve for x
    x = 688,605,248.40/27,525.10
  6. Step 6: Final answer
    x = 25,017.36

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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.