Home / 21,214.72-31,822.60-5,632.32

Finding the Fourth Proportional to 21,214.72, 31,822.60 and 5,632.32

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Solution

The fourth proportional to 21,214.72, 31,822.60 and 5,632.32 is: 8,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.72 : 31,822.60 = 5,632.32 : x
  2. Step 2: Convert to fraction form
    21,214.72/31,822.60 = 5,632.32/x
  3. Step 3: Cross multiply
    21,214.72x = 31,822.60 × 5,632.32
  4. Step 4: Simplify right side
    21,214.72x = 179,235,066.43
  5. Step 5: Solve for x
    x = 179,235,066.43/21,214.72
  6. Step 6: Final answer
    x = 8,448.62

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1.5x scale

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.