Home / 25,077.42-37,619.21-9,279.78

Finding the Fourth Proportional to 25,077.42, 37,619.21 and 9,279.78

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Solution

The fourth proportional to 25,077.42, 37,619.21 and 9,279.78 is: 13,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,077.42 : 37,619.21 = 9,279.78 : x
  2. Step 2: Convert to fraction form
    25,077.42/37,619.21 = 9,279.78/x
  3. Step 3: Cross multiply
    25,077.42x = 37,619.21 × 9,279.78
  4. Step 4: Simplify right side
    25,077.42x = 349,097,946.17
  5. Step 5: Solve for x
    x = 349,097,946.17/25,077.42
  6. Step 6: Final answer
    x = 13,920.81

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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.