Home / 22,117.96-30,523.08-12,686.50

Finding the Fourth Proportional to 22,117.96, 30,523.08 and 12,686.50

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Solution

The fourth proportional to 22,117.96, 30,523.08 and 12,686.50 is: 17,507.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.96 : 30,523.08 = 12,686.50 : x
  2. Step 2: Convert to fraction form
    22,117.96/30,523.08 = 12,686.50/x
  3. Step 3: Cross multiply
    22,117.96x = 30,523.08 × 12,686.50
  4. Step 4: Simplify right side
    22,117.96x = 387,231,054.42
  5. Step 5: Solve for x
    x = 387,231,054.42/22,117.96
  6. Step 6: Final answer
    x = 17,507.54

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Double scale
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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.