Home / 19,875.85-27,429.15-10,923.55

Finding the Fourth Proportional to 19,875.85, 27,429.15 and 10,923.55

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Solution

The fourth proportional to 19,875.85, 27,429.15 and 10,923.55 is: 15,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.85 : 27,429.15 = 10,923.55 : x
  2. Step 2: Convert to fraction form
    19,875.85/27,429.15 = 10,923.55/x
  3. Step 3: Cross multiply
    19,875.85x = 27,429.15 × 10,923.55
  4. Step 4: Simplify right side
    19,875.85x = 299,623,691.48
  5. Step 5: Solve for x
    x = 299,623,691.48/19,875.85
  6. Step 6: Final answer
    x = 15,074.76

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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.