Home / 34,742.10-47,969.55-21,331.74

Finding the Fourth Proportional to 34,742.10, 47,969.55 and 21,331.74

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Solution

The fourth proportional to 34,742.10, 47,969.55 and 21,331.74 is: 29,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,742.10 : 47,969.55 = 21,331.74 : x
  2. Step 2: Convert to fraction form
    34,742.10/47,969.55 = 21,331.74/x
  3. Step 3: Cross multiply
    34,742.10x = 47,969.55 × 21,331.74
  4. Step 4: Simplify right side
    34,742.10x = 1,023,273,968.52
  5. Step 5: Solve for x
    x = 1,023,273,968.52/34,742.10
  6. Step 6: Final answer
    x = 29,453.43

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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.