Home / 21,066.31-31,599.47-6,274.85

Finding the Fourth Proportional to 21,066.31, 31,599.47 and 6,274.85

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Solution

The fourth proportional to 21,066.31, 31,599.47 and 6,274.85 is: 9,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.31 : 31,599.47 = 6,274.85 : x
  2. Step 2: Convert to fraction form
    21,066.31/31,599.47 = 6,274.85/x
  3. Step 3: Cross multiply
    21,066.31x = 31,599.47 × 6,274.85
  4. Step 4: Simplify right side
    21,066.31x = 198,281,744.96
  5. Step 5: Solve for x
    x = 198,281,744.96/21,066.31
  6. Step 6: Final answer
    x = 9,412.27

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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.