Home / 27,858-38,445.45-17,778.36

Finding the Fourth Proportional to 27,858, 38,445.45 and 17,778.36

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Solution

The fourth proportional to 27,858, 38,445.45 and 17,778.36 is: 24,535.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858 : 38,445.45 = 17,778.36 : x
  2. Step 2: Convert to fraction form
    27,858/38,445.45 = 17,778.36/x
  3. Step 3: Cross multiply
    27,858x = 38,445.45 × 17,778.36
  4. Step 4: Simplify right side
    27,858x = 683,497,050.46
  5. Step 5: Solve for x
    x = 683,497,050.46/27,858
  6. Step 6: Final answer
    x = 24,535.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.