Home / 31,354.79-47,036.90-9,165.38

Finding the Fourth Proportional to 31,354.79, 47,036.90 and 9,165.38

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Solution

The fourth proportional to 31,354.79, 47,036.90 and 9,165.38 is: 13,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,354.79 : 47,036.90 = 9,165.38 : x
  2. Step 2: Convert to fraction form
    31,354.79/47,036.90 = 9,165.38/x
  3. Step 3: Cross multiply
    31,354.79x = 47,036.90 × 9,165.38
  4. Step 4: Simplify right side
    31,354.79x = 431,110,850.25
  5. Step 5: Solve for x
    x = 431,110,850.25/31,354.79
  6. Step 6: Final answer
    x = 13,749.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.