Home / 42,919.19-64,378.77-13,337.04

Finding the Fourth Proportional to 42,919.19, 64,378.77 and 13,337.04

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Solution

The fourth proportional to 42,919.19, 64,378.77 and 13,337.04 is: 20,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,919.19 : 64,378.77 = 13,337.04 : x
  2. Step 2: Convert to fraction form
    42,919.19/64,378.77 = 13,337.04/x
  3. Step 3: Cross multiply
    42,919.19x = 64,378.77 × 13,337.04
  4. Step 4: Simplify right side
    42,919.19x = 858,622,230.64
  5. Step 5: Solve for x
    x = 858,622,230.64/42,919.19
  6. Step 6: Final answer
    x = 20,005.56

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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.