Home / 31,369.90-47,013.31-23,010.78

Finding the Fourth Proportional to 31,369.90, 47,013.31 and 23,010.78

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Solution

The fourth proportional to 31,369.90, 47,013.31 and 23,010.78 is: 34,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.90 : 47,013.31 = 23,010.78 : x
  2. Step 2: Convert to fraction form
    31,369.90/47,013.31 = 23,010.78/x
  3. Step 3: Cross multiply
    31,369.90x = 47,013.31 × 23,010.78
  4. Step 4: Simplify right side
    31,369.90x = 1,081,812,933.48
  5. Step 5: Solve for x
    x = 1,081,812,933.48/31,369.90
  6. Step 6: Final answer
    x = 34,485.70

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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.