Home / 35,322.20-52,983.30-21,325.40

Finding the Fourth Proportional to 35,322.20, 52,983.30 and 21,325.40

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Solution

The fourth proportional to 35,322.20, 52,983.30 and 21,325.40 is: 31,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,322.20 : 52,983.30 = 21,325.40 : x
  2. Step 2: Convert to fraction form
    35,322.20/52,983.30 = 21,325.40/x
  3. Step 3: Cross multiply
    35,322.20x = 52,983.30 × 21,325.40
  4. Step 4: Simplify right side
    35,322.20x = 1,129,890,065.82
  5. Step 5: Solve for x
    x = 1,129,890,065.82/35,322.20
  6. Step 6: Final answer
    x = 31,988.10

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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.