Home / 21,351.45-32,002.86-13,349.91

Finding the Fourth Proportional to 21,351.45, 32,002.86 and 13,349.91

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Solution

The fourth proportional to 21,351.45, 32,002.86 and 13,349.91 is: 20,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.45 : 32,002.86 = 13,349.91 : x
  2. Step 2: Convert to fraction form
    21,351.45/32,002.86 = 13,349.91/x
  3. Step 3: Cross multiply
    21,351.45x = 32,002.86 × 13,349.91
  4. Step 4: Simplify right side
    21,351.45x = 427,235,300.74
  5. Step 5: Solve for x
    x = 427,235,300.74/21,351.45
  6. Step 6: Final answer
    x = 20,009.66

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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.