Home / 37,981.20-56,971.80-10,279.20

Finding the Fourth Proportional to 37,981.20, 56,971.80 and 10,279.20

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Solution

The fourth proportional to 37,981.20, 56,971.80 and 10,279.20 is: 15,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,981.20 : 56,971.80 = 10,279.20 : x
  2. Step 2: Convert to fraction form
    37,981.20/56,971.80 = 10,279.20/x
  3. Step 3: Cross multiply
    37,981.20x = 56,971.80 × 10,279.20
  4. Step 4: Simplify right side
    37,981.20x = 585,624,526.56
  5. Step 5: Solve for x
    x = 585,624,526.56/37,981.20
  6. Step 6: Final answer
    x = 15,418.80

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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.