Home / 19,811.60-27,339.90-10,859.48

Finding the Fourth Proportional to 19,811.60, 27,339.90 and 10,859.48

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Solution

The fourth proportional to 19,811.60, 27,339.90 and 10,859.48 is: 14,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.60 : 27,339.90 = 10,859.48 : x
  2. Step 2: Convert to fraction form
    19,811.60/27,339.90 = 10,859.48/x
  3. Step 3: Cross multiply
    19,811.60x = 27,339.90 × 10,859.48
  4. Step 4: Simplify right side
    19,811.60x = 296,897,097.25
  5. Step 5: Solve for x
    x = 296,897,097.25/19,811.60
  6. Step 6: Final answer
    x = 14,986.02

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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.