Home / 47,740.78-71,586.57-21,422.97

Finding the Fourth Proportional to 47,740.78, 71,586.57 and 21,422.97

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Solution

The fourth proportional to 47,740.78, 71,586.57 and 21,422.97 is: 32,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,740.78 : 71,586.57 = 21,422.97 : x
  2. Step 2: Convert to fraction form
    47,740.78/71,586.57 = 21,422.97/x
  3. Step 3: Cross multiply
    47,740.78x = 71,586.57 × 21,422.97
  4. Step 4: Simplify right side
    47,740.78x = 1,533,596,941.51
  5. Step 5: Solve for x
    x = 1,533,596,941.51/47,740.78
  6. Step 6: Final answer
    x = 32,123.42

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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.