Home / 42,441.36-63,640.14-19,047.78

Finding the Fourth Proportional to 42,441.36, 63,640.14 and 19,047.78

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Solution

The fourth proportional to 42,441.36, 63,640.14 and 19,047.78 is: 28,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,441.36 : 63,640.14 = 19,047.78 : x
  2. Step 2: Convert to fraction form
    42,441.36/63,640.14 = 19,047.78/x
  3. Step 3: Cross multiply
    42,441.36x = 63,640.14 × 19,047.78
  4. Step 4: Simplify right side
    42,441.36x = 1,212,203,385.89
  5. Step 5: Solve for x
    x = 1,212,203,385.89/42,441.36
  6. Step 6: Final answer
    x = 28,561.84

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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.