Home / 42,530.40-63,825.84-19,176.48

Finding the Fourth Proportional to 42,530.40, 63,825.84 and 19,176.48

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Solution

The fourth proportional to 42,530.40, 63,825.84 and 19,176.48 is: 28,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,530.40 : 63,825.84 = 19,176.48 : x
  2. Step 2: Convert to fraction form
    42,530.40/63,825.84 = 19,176.48/x
  3. Step 3: Cross multiply
    42,530.40x = 63,825.84 × 19,176.48
  4. Step 4: Simplify right side
    42,530.40x = 1,223,954,944.24
  5. Step 5: Solve for x
    x = 1,223,954,944.24/42,530.40
  6. Step 6: Final answer
    x = 28,778.35

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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.