Home / 30,819.74-42,531.23-16,672.59

Finding the Fourth Proportional to 30,819.74, 42,531.23 and 16,672.59

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Solution

The fourth proportional to 30,819.74, 42,531.23 and 16,672.59 is: 23,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819.74 : 42,531.23 = 16,672.59 : x
  2. Step 2: Convert to fraction form
    30,819.74/42,531.23 = 16,672.59/x
  3. Step 3: Cross multiply
    30,819.74x = 42,531.23 × 16,672.59
  4. Step 4: Simplify right side
    30,819.74x = 709,105,676.62
  5. Step 5: Solve for x
    x = 709,105,676.62/30,819.74
  6. Step 6: Final answer
    x = 23,008.17

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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.