Home / 30,312.80-41,836.59-18,377.85

Finding the Fourth Proportional to 30,312.80, 41,836.59 and 18,377.85

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Solution

The fourth proportional to 30,312.80, 41,836.59 and 18,377.85 is: 25,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.80 : 41,836.59 = 18,377.85 : x
  2. Step 2: Convert to fraction form
    30,312.80/41,836.59 = 18,377.85/x
  3. Step 3: Cross multiply
    30,312.80x = 41,836.59 × 18,377.85
  4. Step 4: Simplify right side
    30,312.80x = 768,866,575.53
  5. Step 5: Solve for x
    x = 768,866,575.53/30,312.80
  6. Step 6: Final answer
    x = 25,364.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.