Home / 22,720.29-31,359.16-14,748.67

Finding the Fourth Proportional to 22,720.29, 31,359.16 and 14,748.67

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Solution

The fourth proportional to 22,720.29, 31,359.16 and 14,748.67 is: 20,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.29 : 31,359.16 = 14,748.67 : x
  2. Step 2: Convert to fraction form
    22,720.29/31,359.16 = 14,748.67/x
  3. Step 3: Cross multiply
    22,720.29x = 31,359.16 × 14,748.67
  4. Step 4: Simplify right side
    22,720.29x = 462,505,902.32
  5. Step 5: Solve for x
    x = 462,505,902.32/22,720.29
  6. Step 6: Final answer
    x = 20,356.51

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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.