Home / 43,081.28-64,621.93-13,499.11

Finding the Fourth Proportional to 43,081.28, 64,621.93 and 13,499.11

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Solution

The fourth proportional to 43,081.28, 64,621.93 and 13,499.11 is: 20,248.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,081.28 : 64,621.93 = 13,499.11 : x
  2. Step 2: Convert to fraction form
    43,081.28/64,621.93 = 13,499.11/x
  3. Step 3: Cross multiply
    43,081.28x = 64,621.93 × 13,499.11
  4. Step 4: Simplify right side
    43,081.28x = 872,338,541.48
  5. Step 5: Solve for x
    x = 872,338,541.48/43,081.28
  6. Step 6: Final answer
    x = 20,248.67

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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.