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Finding the Fourth Proportional to 21,807.54, 32,690.55 and 7,006.08

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Solution

The fourth proportional to 21,807.54, 32,690.55 and 7,006.08 is: 10,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.54 : 32,690.55 = 7,006.08 : x
  2. Step 2: Convert to fraction form
    21,807.54/32,690.55 = 7,006.08/x
  3. Step 3: Cross multiply
    21,807.54x = 32,690.55 × 7,006.08
  4. Step 4: Simplify right side
    21,807.54x = 229,032,608.54
  5. Step 5: Solve for x
    x = 229,032,608.54/21,807.54
  6. Step 6: Final answer
    x = 10,502.45

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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.