Home / 35,288.70-48,689.28-21,131.52

Finding the Fourth Proportional to 35,288.70, 48,689.28 and 21,131.52

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Solution

The fourth proportional to 35,288.70, 48,689.28 and 21,131.52 is: 29,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,288.70 : 48,689.28 = 21,131.52 : x
  2. Step 2: Convert to fraction form
    35,288.70/48,689.28 = 21,131.52/x
  3. Step 3: Cross multiply
    35,288.70x = 48,689.28 × 21,131.52
  4. Step 4: Simplify right side
    35,288.70x = 1,028,878,494.11
  5. Step 5: Solve for x
    x = 1,028,878,494.11/35,288.70
  6. Step 6: Final answer
    x = 29,156.03

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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.