Home / 22,728.08-31,364.52-12,656.40

Finding the Fourth Proportional to 22,728.08, 31,364.52 and 12,656.40

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Solution

The fourth proportional to 22,728.08, 31,364.52 and 12,656.40 is: 17,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.08 : 31,364.52 = 12,656.40 : x
  2. Step 2: Convert to fraction form
    22,728.08/31,364.52 = 12,656.40/x
  3. Step 3: Cross multiply
    22,728.08x = 31,364.52 × 12,656.40
  4. Step 4: Simplify right side
    22,728.08x = 396,961,910.93
  5. Step 5: Solve for x
    x = 396,961,910.93/22,728.08
  6. Step 6: Final answer
    x = 17,465.70

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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.