Home / 21,421.22-32,130.89-5,838.85

Finding the Fourth Proportional to 21,421.22, 32,130.89 and 5,838.85

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Solution

The fourth proportional to 21,421.22, 32,130.89 and 5,838.85 is: 8,758.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.22 : 32,130.89 = 5,838.85 : x
  2. Step 2: Convert to fraction form
    21,421.22/32,130.89 = 5,838.85/x
  3. Step 3: Cross multiply
    21,421.22x = 32,130.89 × 5,838.85
  4. Step 4: Simplify right side
    21,421.22x = 187,607,257.23
  5. Step 5: Solve for x
    x = 187,607,257.23/21,421.22
  6. Step 6: Final answer
    x = 8,758.01

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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.