Home / 30,309.04-45,445.50-12,525.88

Finding the Fourth Proportional to 30,309.04, 45,445.50 and 12,525.88

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Solution

The fourth proportional to 30,309.04, 45,445.50 and 12,525.88 is: 18,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309.04 : 45,445.50 = 12,525.88 : x
  2. Step 2: Convert to fraction form
    30,309.04/45,445.50 = 12,525.88/x
  3. Step 3: Cross multiply
    30,309.04x = 45,445.50 × 12,525.88
  4. Step 4: Simplify right side
    30,309.04x = 569,244,879.54
  5. Step 5: Solve for x
    x = 569,244,879.54/30,309.04
  6. Step 6: Final answer
    x = 18,781.36

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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.