Home / 30,480.22-42,071.14-17,735.86

Finding the Fourth Proportional to 30,480.22, 42,071.14 and 17,735.86

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Solution

The fourth proportional to 30,480.22, 42,071.14 and 17,735.86 is: 24,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.22 : 42,071.14 = 17,735.86 : x
  2. Step 2: Convert to fraction form
    30,480.22/42,071.14 = 17,735.86/x
  3. Step 3: Cross multiply
    30,480.22x = 42,071.14 × 17,735.86
  4. Step 4: Simplify right side
    30,480.22x = 746,167,849.08
  5. Step 5: Solve for x
    x = 746,167,849.08/30,480.22
  6. Step 6: Final answer
    x = 24,480.40

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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.