Home / 21,348.51-32,019.72-13,426.86

Finding the Fourth Proportional to 21,348.51, 32,019.72 and 13,426.86

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Solution

The fourth proportional to 21,348.51, 32,019.72 and 13,426.86 is: 20,138.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.51 : 32,019.72 = 13,426.86 : x
  2. Step 2: Convert to fraction form
    21,348.51/32,019.72 = 13,426.86/x
  3. Step 3: Cross multiply
    21,348.51x = 32,019.72 × 13,426.86
  4. Step 4: Simplify right side
    21,348.51x = 429,924,297.68
  5. Step 5: Solve for x
    x = 429,924,297.68/21,348.51
  6. Step 6: Final answer
    x = 20,138.37

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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.