Home / 21,345.52-32,018.74-5,551.16

Finding the Fourth Proportional to 21,345.52, 32,018.74 and 5,551.16

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Solution

The fourth proportional to 21,345.52, 32,018.74 and 5,551.16 is: 8,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345.52 : 32,018.74 = 5,551.16 : x
  2. Step 2: Convert to fraction form
    21,345.52/32,018.74 = 5,551.16/x
  3. Step 3: Cross multiply
    21,345.52x = 32,018.74 × 5,551.16
  4. Step 4: Simplify right side
    21,345.52x = 177,741,148.74
  5. Step 5: Solve for x
    x = 177,741,148.74/21,345.52
  6. Step 6: Final answer
    x = 8,326.86

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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.