Home / 21,479.92-29,574.93-19,511.62

Finding the Fourth Proportional to 21,479.92, 29,574.93 and 19,511.62

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Solution

The fourth proportional to 21,479.92, 29,574.93 and 19,511.62 is: 26,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.92 : 29,574.93 = 19,511.62 : x
  2. Step 2: Convert to fraction form
    21,479.92/29,574.93 = 19,511.62/x
  3. Step 3: Cross multiply
    21,479.92x = 29,574.93 × 19,511.62
  4. Step 4: Simplify right side
    21,479.92x = 577,054,795.69
  5. Step 5: Solve for x
    x = 577,054,795.69/21,479.92
  6. Step 6: Final answer
    x = 26,864.85

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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.