Home / 55,278.75-82,931.09-18,342.75

Finding the Fourth Proportional to 55,278.75, 82,931.09 and 18,342.75

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Solution

The fourth proportional to 55,278.75, 82,931.09 and 18,342.75 is: 27,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.75 : 82,931.09 = 18,342.75 : x
  2. Step 2: Convert to fraction form
    55,278.75/82,931.09 = 18,342.75/x
  3. Step 3: Cross multiply
    55,278.75x = 82,931.09 × 18,342.75
  4. Step 4: Simplify right side
    55,278.75x = 1,521,184,159.38
  5. Step 5: Solve for x
    x = 1,521,184,159.38/55,278.75
  6. Step 6: Final answer
    x = 27,518.43

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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.