Home / 42,876.68-64,317.44-13,298.72

Finding the Fourth Proportional to 42,876.68, 64,317.44 and 13,298.72

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Solution

The fourth proportional to 42,876.68, 64,317.44 and 13,298.72 is: 19,948.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,876.68 : 64,317.44 = 13,298.72 : x
  2. Step 2: Convert to fraction form
    42,876.68/64,317.44 = 13,298.72/x
  3. Step 3: Cross multiply
    42,876.68x = 64,317.44 × 13,298.72
  4. Step 4: Simplify right side
    42,876.68x = 855,339,337.34
  5. Step 5: Solve for x
    x = 855,339,337.34/42,876.68
  6. Step 6: Final answer
    x = 19,948.83

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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.