Home / 19,641.61-27,105.99-10,689.69

Finding the Fourth Proportional to 19,641.61, 27,105.99 and 10,689.69

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Solution

The fourth proportional to 19,641.61, 27,105.99 and 10,689.69 is: 14,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.61 : 27,105.99 = 10,689.69 : x
  2. Step 2: Convert to fraction form
    19,641.61/27,105.99 = 10,689.69/x
  3. Step 3: Cross multiply
    19,641.61x = 27,105.99 × 10,689.69
  4. Step 4: Simplify right side
    19,641.61x = 289,754,630.24
  5. Step 5: Solve for x
    x = 289,754,630.24/19,641.61
  6. Step 6: Final answer
    x = 14,752.08

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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.