Home / 25,981.49-39,034.64-16,639.63

Finding the Fourth Proportional to 25,981.49, 39,034.64 and 16,639.63

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Solution

The fourth proportional to 25,981.49, 39,034.64 and 16,639.63 is: 24,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.49 : 39,034.64 = 16,639.63 : x
  2. Step 2: Convert to fraction form
    25,981.49/39,034.64 = 16,639.63/x
  3. Step 3: Cross multiply
    25,981.49x = 39,034.64 × 16,639.63
  4. Step 4: Simplify right side
    25,981.49x = 649,521,910.80
  5. Step 5: Solve for x
    x = 649,521,910.80/25,981.49
  6. Step 6: Final answer
    x = 24,999.41

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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.