Home / 25,686.13-35,446.65-18,040.15

Finding the Fourth Proportional to 25,686.13, 35,446.65 and 18,040.15

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Solution

The fourth proportional to 25,686.13, 35,446.65 and 18,040.15 is: 24,895.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,686.13 : 35,446.65 = 18,040.15 : x
  2. Step 2: Convert to fraction form
    25,686.13/35,446.65 = 18,040.15/x
  3. Step 3: Cross multiply
    25,686.13x = 35,446.65 × 18,040.15
  4. Step 4: Simplify right side
    25,686.13x = 639,462,883.00
  5. Step 5: Solve for x
    x = 639,462,883.00/25,686.13
  6. Step 6: Final answer
    x = 24,895.26

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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.