Home / 21,506.35-32,268.63-10,421.29

Finding the Fourth Proportional to 21,506.35, 32,268.63 and 10,421.29

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Solution

The fourth proportional to 21,506.35, 32,268.63 and 10,421.29 is: 15,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.35 : 32,268.63 = 10,421.29 : x
  2. Step 2: Convert to fraction form
    21,506.35/32,268.63 = 10,421.29/x
  3. Step 3: Cross multiply
    21,506.35x = 32,268.63 × 10,421.29
  4. Step 4: Simplify right side
    21,506.35x = 336,280,751.13
  5. Step 5: Solve for x
    x = 336,280,751.13/21,506.35
  6. Step 6: Final answer
    x = 15,636.35

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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.