Home / 31,400.73-47,310.53-28,402.23

Finding the Fourth Proportional to 31,400.73, 47,310.53 and 28,402.23

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Solution

The fourth proportional to 31,400.73, 47,310.53 and 28,402.23 is: 42,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.73 : 47,310.53 = 28,402.23 : x
  2. Step 2: Convert to fraction form
    31,400.73/47,310.53 = 28,402.23/x
  3. Step 3: Cross multiply
    31,400.73x = 47,310.53 × 28,402.23
  4. Step 4: Simplify right side
    31,400.73x = 1,343,724,554.48
  5. Step 5: Solve for x
    x = 1,343,724,554.48/31,400.73
  6. Step 6: Final answer
    x = 42,792.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.