Home / 31,985.91-44,128.67-18,549.63

Finding the Fourth Proportional to 31,985.91, 44,128.67 and 18,549.63

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Solution

The fourth proportional to 31,985.91, 44,128.67 and 18,549.63 is: 25,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.91 : 44,128.67 = 18,549.63 : x
  2. Step 2: Convert to fraction form
    31,985.91/44,128.67 = 18,549.63/x
  3. Step 3: Cross multiply
    31,985.91x = 44,128.67 × 18,549.63
  4. Step 4: Simplify right side
    31,985.91x = 818,570,408.14
  5. Step 5: Solve for x
    x = 818,570,408.14/31,985.91
  6. Step 6: Final answer
    x = 25,591.59

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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.