Home / 30,350.10-41,868.26-20,281.02

Finding the Fourth Proportional to 30,350.10, 41,868.26 and 20,281.02

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Solution

The fourth proportional to 30,350.10, 41,868.26 and 20,281.02 is: 27,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.10 : 41,868.26 = 20,281.02 : x
  2. Step 2: Convert to fraction form
    30,350.10/41,868.26 = 20,281.02/x
  3. Step 3: Cross multiply
    30,350.10x = 41,868.26 × 20,281.02
  4. Step 4: Simplify right side
    30,350.10x = 849,130,707.68
  5. Step 5: Solve for x
    x = 849,130,707.68/30,350.10
  6. Step 6: Final answer
    x = 27,977.85

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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.