Home / 42,492.18-63,745.62-12,913.02

Finding the Fourth Proportional to 42,492.18, 63,745.62 and 12,913.02

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Solution

The fourth proportional to 42,492.18, 63,745.62 and 12,913.02 is: 19,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,492.18 : 63,745.62 = 12,913.02 : x
  2. Step 2: Convert to fraction form
    42,492.18/63,745.62 = 12,913.02/x
  3. Step 3: Cross multiply
    42,492.18x = 63,745.62 × 12,913.02
  4. Step 4: Simplify right side
    42,492.18x = 823,148,465.97
  5. Step 5: Solve for x
    x = 823,148,465.97/42,492.18
  6. Step 6: Final answer
    x = 19,371.76

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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.