Home / 31,421.88-43,362.12-17,274.96

Finding the Fourth Proportional to 31,421.88, 43,362.12 and 17,274.96

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Solution

The fourth proportional to 31,421.88, 43,362.12 and 17,274.96 is: 23,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.88 : 43,362.12 = 17,274.96 : x
  2. Step 2: Convert to fraction form
    31,421.88/43,362.12 = 17,274.96/x
  3. Step 3: Cross multiply
    31,421.88x = 43,362.12 × 17,274.96
  4. Step 4: Simplify right side
    31,421.88x = 749,078,888.52
  5. Step 5: Solve for x
    x = 749,078,888.52/31,421.88
  6. Step 6: Final answer
    x = 23,839.40

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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.