Home / 42,145.21-63,226.92-22,420.90

Finding the Fourth Proportional to 42,145.21, 63,226.92 and 22,420.90

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Solution

The fourth proportional to 42,145.21, 63,226.92 and 22,420.90 is: 33,636.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,145.21 : 63,226.92 = 22,420.90 : x
  2. Step 2: Convert to fraction form
    42,145.21/63,226.92 = 22,420.90/x
  3. Step 3: Cross multiply
    42,145.21x = 63,226.92 × 22,420.90
  4. Step 4: Simplify right side
    42,145.21x = 1,417,604,134.49
  5. Step 5: Solve for x
    x = 1,417,604,134.49/42,145.21
  6. Step 6: Final answer
    x = 33,636.19

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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.