Home / 21,137.48-31,706.52-10,045.28

Finding the Fourth Proportional to 21,137.48, 31,706.52 and 10,045.28

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Solution

The fourth proportional to 21,137.48, 31,706.52 and 10,045.28 is: 15,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137.48 : 31,706.52 = 10,045.28 : x
  2. Step 2: Convert to fraction form
    21,137.48/31,706.52 = 10,045.28/x
  3. Step 3: Cross multiply
    21,137.48x = 31,706.52 × 10,045.28
  4. Step 4: Simplify right side
    21,137.48x = 318,500,871.23
  5. Step 5: Solve for x
    x = 318,500,871.23/21,137.48
  6. Step 6: Final answer
    x = 15,068.06

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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.