Home / 37,640.48-51,941.78-21,507.18

Finding the Fourth Proportional to 37,640.48, 51,941.78 and 21,507.18

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Solution

The fourth proportional to 37,640.48, 51,941.78 and 21,507.18 is: 29,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,640.48 : 51,941.78 = 21,507.18 : x
  2. Step 2: Convert to fraction form
    37,640.48/51,941.78 = 21,507.18/x
  3. Step 3: Cross multiply
    37,640.48x = 51,941.78 × 21,507.18
  4. Step 4: Simplify right side
    37,640.48x = 1,117,121,211.98
  5. Step 5: Solve for x
    x = 1,117,121,211.98/37,640.48
  6. Step 6: Final answer
    x = 29,678.72

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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.