Home / 42,520.46-63,739.33-20,328.08

Finding the Fourth Proportional to 42,520.46, 63,739.33 and 20,328.08

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Solution

The fourth proportional to 42,520.46, 63,739.33 and 20,328.08 is: 30,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,520.46 : 63,739.33 = 20,328.08 : x
  2. Step 2: Convert to fraction form
    42,520.46/63,739.33 = 20,328.08/x
  3. Step 3: Cross multiply
    42,520.46x = 63,739.33 × 20,328.08
  4. Step 4: Simplify right side
    42,520.46x = 1,295,698,199.39
  5. Step 5: Solve for x
    x = 1,295,698,199.39/42,520.46
  6. Step 6: Final answer
    x = 30,472.35

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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.