Home / 34,285.24-47,329.14-20,139.22

Finding the Fourth Proportional to 34,285.24, 47,329.14 and 20,139.22

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Solution

The fourth proportional to 34,285.24, 47,329.14 and 20,139.22 is: 27,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,285.24 : 47,329.14 = 20,139.22 : x
  2. Step 2: Convert to fraction form
    34,285.24/47,329.14 = 20,139.22/x
  3. Step 3: Cross multiply
    34,285.24x = 47,329.14 × 20,139.22
  4. Step 4: Simplify right side
    34,285.24x = 953,171,962.87
  5. Step 5: Solve for x
    x = 953,171,962.87/34,285.24
  6. Step 6: Final answer
    x = 27,801.23

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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.