Home / 42,205.57-63,339.48-20,019.02

Finding the Fourth Proportional to 42,205.57, 63,339.48 and 20,019.02

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Solution

The fourth proportional to 42,205.57, 63,339.48 and 20,019.02 is: 30,043.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,205.57 : 63,339.48 = 20,019.02 : x
  2. Step 2: Convert to fraction form
    42,205.57/63,339.48 = 20,019.02/x
  3. Step 3: Cross multiply
    42,205.57x = 63,339.48 × 20,019.02
  4. Step 4: Simplify right side
    42,205.57x = 1,267,994,000.21
  5. Step 5: Solve for x
    x = 1,267,994,000.21/42,205.57
  6. Step 6: Final answer
    x = 30,043.29

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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.