Home / 30,820.06-42,531.56-16,672.90

Finding the Fourth Proportional to 30,820.06, 42,531.56 and 16,672.90

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Solution

The fourth proportional to 30,820.06, 42,531.56 and 16,672.90 is: 23,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.06 : 42,531.56 = 16,672.90 : x
  2. Step 2: Convert to fraction form
    30,820.06/42,531.56 = 16,672.90/x
  3. Step 3: Cross multiply
    30,820.06x = 42,531.56 × 16,672.90
  4. Step 4: Simplify right side
    30,820.06x = 709,124,446.72
  5. Step 5: Solve for x
    x = 709,124,446.72/30,820.06
  6. Step 6: Final answer
    x = 23,008.54

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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.