Home / 19,929.71-27,472.93-16,386.77

Finding the Fourth Proportional to 19,929.71, 27,472.93 and 16,386.77

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Solution

The fourth proportional to 19,929.71, 27,472.93 and 16,386.77 is: 22,589.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.71 : 27,472.93 = 16,386.77 : x
  2. Step 2: Convert to fraction form
    19,929.71/27,472.93 = 16,386.77/x
  3. Step 3: Cross multiply
    19,929.71x = 27,472.93 × 16,386.77
  4. Step 4: Simplify right side
    19,929.71x = 450,192,585.14
  5. Step 5: Solve for x
    x = 450,192,585.14/19,929.71
  6. Step 6: Final answer
    x = 22,589.02

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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.