Home / 19,862.21-27,409.93-10,909.89

Finding the Fourth Proportional to 19,862.21, 27,409.93 and 10,909.89

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Solution

The fourth proportional to 19,862.21, 27,409.93 and 10,909.89 is: 15,055.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.21 : 27,409.93 = 10,909.89 : x
  2. Step 2: Convert to fraction form
    19,862.21/27,409.93 = 10,909.89/x
  3. Step 3: Cross multiply
    19,862.21x = 27,409.93 × 10,909.89
  4. Step 4: Simplify right side
    19,862.21x = 299,039,293.93
  5. Step 5: Solve for x
    x = 299,039,293.93/19,862.21
  6. Step 6: Final answer
    x = 15,055.69

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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.