Home / 27,123.84-40,630.32-20,111.76

Finding the Fourth Proportional to 27,123.84, 40,630.32 and 20,111.76

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Solution

The fourth proportional to 27,123.84, 40,630.32 and 20,111.76 is: 30,126.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.84 : 40,630.32 = 20,111.76 : x
  2. Step 2: Convert to fraction form
    27,123.84/40,630.32 = 20,111.76/x
  3. Step 3: Cross multiply
    27,123.84x = 40,630.32 × 20,111.76
  4. Step 4: Simplify right side
    27,123.84x = 817,147,244.56
  5. Step 5: Solve for x
    x = 817,147,244.56/27,123.84
  6. Step 6: Final answer
    x = 30,126.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.