Home / 19,921.50-29,856.66-10,038.66

Finding the Fourth Proportional to 19,921.50, 29,856.66 and 10,038.66

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Solution

The fourth proportional to 19,921.50, 29,856.66 and 10,038.66 is: 15,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.50 : 29,856.66 = 10,038.66 : x
  2. Step 2: Convert to fraction form
    19,921.50/29,856.66 = 10,038.66/x
  3. Step 3: Cross multiply
    19,921.50x = 29,856.66 × 10,038.66
  4. Step 4: Simplify right side
    19,921.50x = 299,720,858.48
  5. Step 5: Solve for x
    x = 299,720,858.48/19,921.50
  6. Step 6: Final answer
    x = 15,045.09

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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.