Home / 30,207.47-41,685.14-16,779.57

Finding the Fourth Proportional to 30,207.47, 41,685.14 and 16,779.57

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Solution

The fourth proportional to 30,207.47, 41,685.14 and 16,779.57 is: 23,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.47 : 41,685.14 = 16,779.57 : x
  2. Step 2: Convert to fraction form
    30,207.47/41,685.14 = 16,779.57/x
  3. Step 3: Cross multiply
    30,207.47x = 41,685.14 × 16,779.57
  4. Step 4: Simplify right side
    30,207.47x = 699,458,640.69
  5. Step 5: Solve for x
    x = 699,458,640.69/30,207.47
  6. Step 6: Final answer
    x = 23,155.16

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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.