Home / 19,806.48-27,332.88-10,854.12

Finding the Fourth Proportional to 19,806.48, 27,332.88 and 10,854.12

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Solution

The fourth proportional to 19,806.48, 27,332.88 and 10,854.12 is: 14,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.48 : 27,332.88 = 10,854.12 : x
  2. Step 2: Convert to fraction form
    19,806.48/27,332.88 = 10,854.12/x
  3. Step 3: Cross multiply
    19,806.48x = 27,332.88 × 10,854.12
  4. Step 4: Simplify right side
    19,806.48x = 296,674,359.47
  5. Step 5: Solve for x
    x = 296,674,359.47/19,806.48
  6. Step 6: Final answer
    x = 14,978.65

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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.