Home / 42,083.79-63,123.21-15,786.33

Finding the Fourth Proportional to 42,083.79, 63,123.21 and 15,786.33

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Solution

The fourth proportional to 42,083.79, 63,123.21 and 15,786.33 is: 23,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,083.79 : 63,123.21 = 15,786.33 : x
  2. Step 2: Convert to fraction form
    42,083.79/63,123.21 = 15,786.33/x
  3. Step 3: Cross multiply
    42,083.79x = 63,123.21 × 15,786.33
  4. Step 4: Simplify right side
    42,083.79x = 996,483,823.72
  5. Step 5: Solve for x
    x = 996,483,823.72/42,083.79
  6. Step 6: Final answer
    x = 23,678.57

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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.