Home / 15,811.95-23,719.28-4,717.92

Finding the Fourth Proportional to 15,811.95, 23,719.28 and 4,717.92

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Solution

The fourth proportional to 15,811.95, 23,719.28 and 4,717.92 is: 7,077.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.95 : 23,719.28 = 4,717.92 : x
  2. Step 2: Convert to fraction form
    15,811.95/23,719.28 = 4,717.92/x
  3. Step 3: Cross multiply
    15,811.95x = 23,719.28 × 4,717.92
  4. Step 4: Simplify right side
    15,811.95x = 111,905,641.91
  5. Step 5: Solve for x
    x = 111,905,641.91/15,811.95
  6. Step 6: Final answer
    x = 7,077.28

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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.