Home / 34,521.16-47,619.78-20,719.96

Finding the Fourth Proportional to 34,521.16, 47,619.78 and 20,719.96

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Solution

The fourth proportional to 34,521.16, 47,619.78 and 20,719.96 is: 28,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,521.16 : 47,619.78 = 20,719.96 : x
  2. Step 2: Convert to fraction form
    34,521.16/47,619.78 = 20,719.96/x
  3. Step 3: Cross multiply
    34,521.16x = 47,619.78 × 20,719.96
  4. Step 4: Simplify right side
    34,521.16x = 986,679,936.81
  5. Step 5: Solve for x
    x = 986,679,936.81/34,521.16
  6. Step 6: Final answer
    x = 28,581.89

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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.