Home / 30,820.39-42,531.96-16,672.93

Finding the Fourth Proportional to 30,820.39, 42,531.96 and 16,672.93

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Solution

The fourth proportional to 30,820.39, 42,531.96 and 16,672.93 is: 23,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.39 : 42,531.96 = 16,672.93 : x
  2. Step 2: Convert to fraction form
    30,820.39/42,531.96 = 16,672.93/x
  3. Step 3: Cross multiply
    30,820.39x = 42,531.96 × 16,672.93
  4. Step 4: Simplify right side
    30,820.39x = 709,132,391.84
  5. Step 5: Solve for x
    x = 709,132,391.84/30,820.39
  6. Step 6: Final answer
    x = 23,008.55

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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.