Home / 22,659.85-31,270.08-12,587.71

Finding the Fourth Proportional to 22,659.85, 31,270.08 and 12,587.71

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Solution

The fourth proportional to 22,659.85, 31,270.08 and 12,587.71 is: 17,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.85 : 31,270.08 = 12,587.71 : x
  2. Step 2: Convert to fraction form
    22,659.85/31,270.08 = 12,587.71/x
  3. Step 3: Cross multiply
    22,659.85x = 31,270.08 × 12,587.71
  4. Step 4: Simplify right side
    22,659.85x = 393,618,698.72
  5. Step 5: Solve for x
    x = 393,618,698.72/22,659.85
  6. Step 6: Final answer
    x = 17,370.75

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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.