Home / 42,324.78-63,471.09-13,855.10

Finding the Fourth Proportional to 42,324.78, 63,471.09 and 13,855.10

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Solution

The fourth proportional to 42,324.78, 63,471.09 and 13,855.10 is: 20,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,324.78 : 63,471.09 = 13,855.10 : x
  2. Step 2: Convert to fraction form
    42,324.78/63,471.09 = 13,855.10/x
  3. Step 3: Cross multiply
    42,324.78x = 63,471.09 × 13,855.10
  4. Step 4: Simplify right side
    42,324.78x = 879,398,390.69
  5. Step 5: Solve for x
    x = 879,398,390.69/42,324.78
  6. Step 6: Final answer
    x = 20,777.39

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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.