Home / 21,730.47-32,601.42-6,939.69

Finding the Fourth Proportional to 21,730.47, 32,601.42 and 6,939.69

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Solution

The fourth proportional to 21,730.47, 32,601.42 and 6,939.69 is: 10,411.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.47 : 32,601.42 = 6,939.69 : x
  2. Step 2: Convert to fraction form
    21,730.47/32,601.42 = 6,939.69/x
  3. Step 3: Cross multiply
    21,730.47x = 32,601.42 × 6,939.69
  4. Step 4: Simplify right side
    21,730.47x = 226,243,748.36
  5. Step 5: Solve for x
    x = 226,243,748.36/21,730.47
  6. Step 6: Final answer
    x = 10,411.36

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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.