Home / 30,480.90-45,721.35-14,887.59

Finding the Fourth Proportional to 30,480.90, 45,721.35 and 14,887.59

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Solution

The fourth proportional to 30,480.90, 45,721.35 and 14,887.59 is: 22,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.90 : 45,721.35 = 14,887.59 : x
  2. Step 2: Convert to fraction form
    30,480.90/45,721.35 = 14,887.59/x
  3. Step 3: Cross multiply
    30,480.90x = 45,721.35 × 14,887.59
  4. Step 4: Simplify right side
    30,480.90x = 680,680,713.05
  5. Step 5: Solve for x
    x = 680,680,713.05/30,480.90
  6. Step 6: Final answer
    x = 22,331.39

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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.