Home / 21,522.48-32,291.88-10,428.36

Finding the Fourth Proportional to 21,522.48, 32,291.88 and 10,428.36

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Solution

The fourth proportional to 21,522.48, 32,291.88 and 10,428.36 is: 15,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.48 : 32,291.88 = 10,428.36 : x
  2. Step 2: Convert to fraction form
    21,522.48/32,291.88 = 10,428.36/x
  3. Step 3: Cross multiply
    21,522.48x = 32,291.88 × 10,428.36
  4. Step 4: Simplify right side
    21,522.48x = 336,751,349.72
  5. Step 5: Solve for x
    x = 336,751,349.72/21,522.48
  6. Step 6: Final answer
    x = 15,646.49

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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.