Home / 20,233.26-27,925.55-12,686.15

Finding the Fourth Proportional to 20,233.26, 27,925.55 and 12,686.15

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Solution

The fourth proportional to 20,233.26, 27,925.55 and 12,686.15 is: 17,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.26 : 27,925.55 = 12,686.15 : x
  2. Step 2: Convert to fraction form
    20,233.26/27,925.55 = 12,686.15/x
  3. Step 3: Cross multiply
    20,233.26x = 27,925.55 × 12,686.15
  4. Step 4: Simplify right side
    20,233.26x = 354,267,513.07
  5. Step 5: Solve for x
    x = 354,267,513.07/20,233.26
  6. Step 6: Final answer
    x = 17,509.17

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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.