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Finding the Fourth Proportional to 39,894.89, 59,842.15 and 10,310.21

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Solution

The fourth proportional to 39,894.89, 59,842.15 and 10,310.21 is: 15,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,894.89 : 59,842.15 = 10,310.21 : x
  2. Step 2: Convert to fraction form
    39,894.89/59,842.15 = 10,310.21/x
  3. Step 3: Cross multiply
    39,894.89x = 59,842.15 × 10,310.21
  4. Step 4: Simplify right side
    39,894.89x = 616,985,133.35
  5. Step 5: Solve for x
    x = 616,985,133.35/39,894.89
  6. Step 6: Final answer
    x = 15,465.27

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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.