Home / 21,165.15-31,746.36-6,374.19

Finding the Fourth Proportional to 21,165.15, 31,746.36 and 6,374.19

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Solution

The fourth proportional to 21,165.15, 31,746.36 and 6,374.19 is: 9,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.15 : 31,746.36 = 6,374.19 : x
  2. Step 2: Convert to fraction form
    21,165.15/31,746.36 = 6,374.19/x
  3. Step 3: Cross multiply
    21,165.15x = 31,746.36 × 6,374.19
  4. Step 4: Simplify right side
    21,165.15x = 202,357,419.62
  5. Step 5: Solve for x
    x = 202,357,419.62/21,165.15
  6. Step 6: Final answer
    x = 9,560.88

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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.