Home / 20,707.15-31,061.01-5,916.55

Finding the Fourth Proportional to 20,707.15, 31,061.01 and 5,916.55

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Solution

The fourth proportional to 20,707.15, 31,061.01 and 5,916.55 is: 8,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.15 : 31,061.01 = 5,916.55 : x
  2. Step 2: Convert to fraction form
    20,707.15/31,061.01 = 5,916.55/x
  3. Step 3: Cross multiply
    20,707.15x = 31,061.01 × 5,916.55
  4. Step 4: Simplify right side
    20,707.15x = 183,774,018.72
  5. Step 5: Solve for x
    x = 183,774,018.72/20,707.15
  6. Step 6: Final answer
    x = 8,874.91

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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.