Home / 21,637.68-32,456.52-5,221.68

Finding the Fourth Proportional to 21,637.68, 32,456.52 and 5,221.68

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Solution

The fourth proportional to 21,637.68, 32,456.52 and 5,221.68 is: 7,832.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.68 : 32,456.52 = 5,221.68 : x
  2. Step 2: Convert to fraction form
    21,637.68/32,456.52 = 5,221.68/x
  3. Step 3: Cross multiply
    21,637.68x = 32,456.52 × 5,221.68
  4. Step 4: Simplify right side
    21,637.68x = 169,477,561.35
  5. Step 5: Solve for x
    x = 169,477,561.35/21,637.68
  6. Step 6: Final answer
    x = 7,832.52

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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.