Home / 15,929.66-21,972.75-10,271.66

Finding the Fourth Proportional to 15,929.66, 21,972.75 and 10,271.66

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Solution

The fourth proportional to 15,929.66, 21,972.75 and 10,271.66 is: 14,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.66 : 21,972.75 = 10,271.66 : x
  2. Step 2: Convert to fraction form
    15,929.66/21,972.75 = 10,271.66/x
  3. Step 3: Cross multiply
    15,929.66x = 21,972.75 × 10,271.66
  4. Step 4: Simplify right side
    15,929.66x = 225,696,617.27
  5. Step 5: Solve for x
    x = 225,696,617.27/15,929.66
  6. Step 6: Final answer
    x = 14,168.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.