Home / 19,862.40-27,408.48-10,909.44

Finding the Fourth Proportional to 19,862.40, 27,408.48 and 10,909.44

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Solution

The fourth proportional to 19,862.40, 27,408.48 and 10,909.44 is: 15,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.40 : 27,408.48 = 10,909.44 : x
  2. Step 2: Convert to fraction form
    19,862.40/27,408.48 = 10,909.44/x
  3. Step 3: Cross multiply
    19,862.40x = 27,408.48 × 10,909.44
  4. Step 4: Simplify right side
    19,862.40x = 299,011,168.05
  5. Step 5: Solve for x
    x = 299,011,168.05/19,862.40
  6. Step 6: Final answer
    x = 15,054.13

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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.