Home / 21,289.52-31,935.48-6,500.72

Finding the Fourth Proportional to 21,289.52, 31,935.48 and 6,500.72

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Solution

The fourth proportional to 21,289.52, 31,935.48 and 6,500.72 is: 9,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289.52 : 31,935.48 = 6,500.72 : x
  2. Step 2: Convert to fraction form
    21,289.52/31,935.48 = 6,500.72/x
  3. Step 3: Cross multiply
    21,289.52x = 31,935.48 × 6,500.72
  4. Step 4: Simplify right side
    21,289.52x = 207,603,613.55
  5. Step 5: Solve for x
    x = 207,603,613.55/21,289.52
  6. Step 6: Final answer
    x = 9,751.45

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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.