Home / 30,412.07-41,964.50-16,981.61

Finding the Fourth Proportional to 30,412.07, 41,964.50 and 16,981.61

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Solution

The fourth proportional to 30,412.07, 41,964.50 and 16,981.61 is: 23,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,412.07 : 41,964.50 = 16,981.61 : x
  2. Step 2: Convert to fraction form
    30,412.07/41,964.50 = 16,981.61/x
  3. Step 3: Cross multiply
    30,412.07x = 41,964.50 × 16,981.61
  4. Step 4: Simplify right side
    30,412.07x = 712,624,625.48
  5. Step 5: Solve for x
    x = 712,624,625.48/30,412.07
  6. Step 6: Final answer
    x = 23,432.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.