Home / 21,214.40-31,822.88-5,632

Finding the Fourth Proportional to 21,214.40, 31,822.88 and 5,632

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Solution

The fourth proportional to 21,214.40, 31,822.88 and 5,632 is: 8,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.40 : 31,822.88 = 5,632 : x
  2. Step 2: Convert to fraction form
    21,214.40/31,822.88 = 5,632/x
  3. Step 3: Cross multiply
    21,214.40x = 31,822.88 × 5,632
  4. Step 4: Simplify right side
    21,214.40x = 179,226,460.16
  5. Step 5: Solve for x
    x = 179,226,460.16/21,214.40
  6. Step 6: Final answer
    x = 8,448.34

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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.