Home / 21,398.72-32,098.08-5,818.64

Finding the Fourth Proportional to 21,398.72, 32,098.08 and 5,818.64

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Solution

The fourth proportional to 21,398.72, 32,098.08 and 5,818.64 is: 8,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.72 : 32,098.08 = 5,818.64 : x
  2. Step 2: Convert to fraction form
    21,398.72/32,098.08 = 5,818.64/x
  3. Step 3: Cross multiply
    21,398.72x = 32,098.08 × 5,818.64
  4. Step 4: Simplify right side
    21,398.72x = 186,767,172.21
  5. Step 5: Solve for x
    x = 186,767,172.21/21,398.72
  6. Step 6: Final answer
    x = 8,727.96

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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.