Home / 21,421.89-32,132.73-14,291.07

Finding the Fourth Proportional to 21,421.89, 32,132.73 and 14,291.07

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Solution

The fourth proportional to 21,421.89, 32,132.73 and 14,291.07 is: 21,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.89 : 32,132.73 = 14,291.07 : x
  2. Step 2: Convert to fraction form
    21,421.89/32,132.73 = 14,291.07/x
  3. Step 3: Cross multiply
    21,421.89x = 32,132.73 × 14,291.07
  4. Step 4: Simplify right side
    21,421.89x = 459,211,093.72
  5. Step 5: Solve for x
    x = 459,211,093.72/21,421.89
  6. Step 6: Final answer
    x = 21,436.53

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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.