Home / 30,080.39-45,095.19-18,962.55

Finding the Fourth Proportional to 30,080.39, 45,095.19 and 18,962.55

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Solution

The fourth proportional to 30,080.39, 45,095.19 and 18,962.55 is: 28,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.39 : 45,095.19 = 18,962.55 : x
  2. Step 2: Convert to fraction form
    30,080.39/45,095.19 = 18,962.55/x
  3. Step 3: Cross multiply
    30,080.39x = 45,095.19 × 18,962.55
  4. Step 4: Simplify right side
    30,080.39x = 855,119,795.13
  5. Step 5: Solve for x
    x = 855,119,795.13/30,080.39
  6. Step 6: Final answer
    x = 28,427.82

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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.