Home / 23,212.91-31,960.98-20,484.63

Finding the Fourth Proportional to 23,212.91, 31,960.98 and 20,484.63

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Solution

The fourth proportional to 23,212.91, 31,960.98 and 20,484.63 is: 28,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,212.91 : 31,960.98 = 20,484.63 : x
  2. Step 2: Convert to fraction form
    23,212.91/31,960.98 = 20,484.63/x
  3. Step 3: Cross multiply
    23,212.91x = 31,960.98 × 20,484.63
  4. Step 4: Simplify right side
    23,212.91x = 654,708,849.74
  5. Step 5: Solve for x
    x = 654,708,849.74/23,212.91
  6. Step 6: Final answer
    x = 28,204.51

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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.