Home / 22,656.92-31,268.53-12,587.40

Finding the Fourth Proportional to 22,656.92, 31,268.53 and 12,587.40

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Solution

The fourth proportional to 22,656.92, 31,268.53 and 12,587.40 is: 17,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,656.92 : 31,268.53 = 12,587.40 : x
  2. Step 2: Convert to fraction form
    22,656.92/31,268.53 = 12,587.40/x
  3. Step 3: Cross multiply
    22,656.92x = 31,268.53 × 12,587.40
  4. Step 4: Simplify right side
    22,656.92x = 393,589,510.26
  5. Step 5: Solve for x
    x = 393,589,510.26/22,656.92
  6. Step 6: Final answer
    x = 17,371.72

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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.