Home / 18,278.04-27,378.66-18,070.68

Finding the Fourth Proportional to 18,278.04, 27,378.66 and 18,070.68

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Solution

The fourth proportional to 18,278.04, 27,378.66 and 18,070.68 is: 27,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.04 : 27,378.66 = 18,070.68 : x
  2. Step 2: Convert to fraction form
    18,278.04/27,378.66 = 18,070.68/x
  3. Step 3: Cross multiply
    18,278.04x = 27,378.66 × 18,070.68
  4. Step 4: Simplify right side
    18,278.04x = 494,751,003.69
  5. Step 5: Solve for x
    x = 494,751,003.69/18,278.04
  6. Step 6: Final answer
    x = 27,068.06

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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.