Home / 21,572.91-32,360.76-6,782.45

Finding the Fourth Proportional to 21,572.91, 32,360.76 and 6,782.45

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Solution

The fourth proportional to 21,572.91, 32,360.76 and 6,782.45 is: 10,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.91 : 32,360.76 = 6,782.45 : x
  2. Step 2: Convert to fraction form
    21,572.91/32,360.76 = 6,782.45/x
  3. Step 3: Cross multiply
    21,572.91x = 32,360.76 × 6,782.45
  4. Step 4: Simplify right side
    21,572.91x = 219,485,074.86
  5. Step 5: Solve for x
    x = 219,485,074.86/21,572.91
  6. Step 6: Final answer
    x = 10,174.11

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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.