Home / 30,220.11-45,314.59-13,565.86

Finding the Fourth Proportional to 30,220.11, 45,314.59 and 13,565.86

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Solution

The fourth proportional to 30,220.11, 45,314.59 and 13,565.86 is: 20,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.11 : 45,314.59 = 13,565.86 : x
  2. Step 2: Convert to fraction form
    30,220.11/45,314.59 = 13,565.86/x
  3. Step 3: Cross multiply
    30,220.11x = 45,314.59 × 13,565.86
  4. Step 4: Simplify right side
    30,220.11x = 614,731,383.90
  5. Step 5: Solve for x
    x = 614,731,383.90/30,220.11
  6. Step 6: Final answer
    x = 20,341.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.