Home / 35,328.94-48,732.30-20,979.02

Finding the Fourth Proportional to 35,328.94, 48,732.30 and 20,979.02

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Solution

The fourth proportional to 35,328.94, 48,732.30 and 20,979.02 is: 28,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,328.94 : 48,732.30 = 20,979.02 : x
  2. Step 2: Convert to fraction form
    35,328.94/48,732.30 = 20,979.02/x
  3. Step 3: Cross multiply
    35,328.94x = 48,732.30 × 20,979.02
  4. Step 4: Simplify right side
    35,328.94x = 1,022,356,018.18
  5. Step 5: Solve for x
    x = 1,022,356,018.18/35,328.94
  6. Step 6: Final answer
    x = 28,938.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.