Home / 30,159.36-45,225.84-12,377.82

Finding the Fourth Proportional to 30,159.36, 45,225.84 and 12,377.82

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Solution

The fourth proportional to 30,159.36, 45,225.84 and 12,377.82 is: 18,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.36 : 45,225.84 = 12,377.82 : x
  2. Step 2: Convert to fraction form
    30,159.36/45,225.84 = 12,377.82/x
  3. Step 3: Cross multiply
    30,159.36x = 45,225.84 × 12,377.82
  4. Step 4: Simplify right side
    30,159.36x = 559,797,306.87
  5. Step 5: Solve for x
    x = 559,797,306.87/30,159.36
  6. Step 6: Final answer
    x = 18,561.31

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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.