Home / 31,987.85-44,128.97-18,551.32

Finding the Fourth Proportional to 31,987.85, 44,128.97 and 18,551.32

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Solution

The fourth proportional to 31,987.85, 44,128.97 and 18,551.32 is: 25,592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,987.85 : 44,128.97 = 18,551.32 : x
  2. Step 2: Convert to fraction form
    31,987.85/44,128.97 = 18,551.32/x
  3. Step 3: Cross multiply
    31,987.85x = 44,128.97 × 18,551.32
  4. Step 4: Simplify right side
    31,987.85x = 818,650,643.74
  5. Step 5: Solve for x
    x = 818,650,643.74/31,987.85
  6. Step 6: Final answer
    x = 25,592.55

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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.