Home / 42,891.42-64,338.30-11,726.67

Finding the Fourth Proportional to 42,891.42, 64,338.30 and 11,726.67

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Solution

The fourth proportional to 42,891.42, 64,338.30 and 11,726.67 is: 17,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,891.42 : 64,338.30 = 11,726.67 : x
  2. Step 2: Convert to fraction form
    42,891.42/64,338.30 = 11,726.67/x
  3. Step 3: Cross multiply
    42,891.42x = 64,338.30 × 11,726.67
  4. Step 4: Simplify right side
    42,891.42x = 754,474,012.46
  5. Step 5: Solve for x
    x = 754,474,012.46/42,891.42
  6. Step 6: Final answer
    x = 17,590.32

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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.