Home / 35,013.20-52,519.80-10,389.20

Finding the Fourth Proportional to 35,013.20, 52,519.80 and 10,389.20

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Solution

The fourth proportional to 35,013.20, 52,519.80 and 10,389.20 is: 15,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,013.20 : 52,519.80 = 10,389.20 : x
  2. Step 2: Convert to fraction form
    35,013.20/52,519.80 = 10,389.20/x
  3. Step 3: Cross multiply
    35,013.20x = 52,519.80 × 10,389.20
  4. Step 4: Simplify right side
    35,013.20x = 545,638,706.16
  5. Step 5: Solve for x
    x = 545,638,706.16/35,013.20
  6. Step 6: Final answer
    x = 15,583.80

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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.