Home / 30,312.72-41,833.26-18,377.10

Finding the Fourth Proportional to 30,312.72, 41,833.26 and 18,377.10

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Solution

The fourth proportional to 30,312.72, 41,833.26 and 18,377.10 is: 25,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.72 : 41,833.26 = 18,377.10 : x
  2. Step 2: Convert to fraction form
    30,312.72/41,833.26 = 18,377.10/x
  3. Step 3: Cross multiply
    30,312.72x = 41,833.26 × 18,377.10
  4. Step 4: Simplify right side
    30,312.72x = 768,774,002.35
  5. Step 5: Solve for x
    x = 768,774,002.35/30,312.72
  6. Step 6: Final answer
    x = 25,361.43

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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.