Home / 42,189.44-63,302.72-20,018.88

Finding the Fourth Proportional to 42,189.44, 63,302.72 and 20,018.88

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Solution

The fourth proportional to 42,189.44, 63,302.72 and 20,018.88 is: 30,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,189.44 : 63,302.72 = 20,018.88 : x
  2. Step 2: Convert to fraction form
    42,189.44/63,302.72 = 20,018.88/x
  3. Step 3: Cross multiply
    42,189.44x = 63,302.72 × 20,018.88
  4. Step 4: Simplify right side
    42,189.44x = 1,267,249,555.35
  5. Step 5: Solve for x
    x = 1,267,249,555.35/42,189.44
  6. Step 6: Final answer
    x = 30,037.13

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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.