Home / 22,719.29-31,357.78-14,747.67

Finding the Fourth Proportional to 22,719.29, 31,357.78 and 14,747.67

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Solution

The fourth proportional to 22,719.29, 31,357.78 and 14,747.67 is: 20,355.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.29 : 31,357.78 = 14,747.67 : x
  2. Step 2: Convert to fraction form
    22,719.29/31,357.78 = 14,747.67/x
  3. Step 3: Cross multiply
    22,719.29x = 31,357.78 × 14,747.67
  4. Step 4: Simplify right side
    22,719.29x = 462,454,237.46
  5. Step 5: Solve for x
    x = 462,454,237.46/22,719.29
  6. Step 6: Final answer
    x = 20,355.14

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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.