Home / 42,815.79-64,224.09-11,651.04

Finding the Fourth Proportional to 42,815.79, 64,224.09 and 11,651.04

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Solution

The fourth proportional to 42,815.79, 64,224.09 and 11,651.04 is: 17,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,815.79 : 64,224.09 = 11,651.04 : x
  2. Step 2: Convert to fraction form
    42,815.79/64,224.09 = 11,651.04/x
  3. Step 3: Cross multiply
    42,815.79x = 64,224.09 × 11,651.04
  4. Step 4: Simplify right side
    42,815.79x = 748,277,441.55
  5. Step 5: Solve for x
    x = 748,277,441.55/42,815.79
  6. Step 6: Final answer
    x = 17,476.67

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1.5x scale

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.