Home / 19,877.40-27,431.32-10,925.13

Finding the Fourth Proportional to 19,877.40, 27,431.32 and 10,925.13

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Solution

The fourth proportional to 19,877.40, 27,431.32 and 10,925.13 is: 15,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.40 : 27,431.32 = 10,925.13 : x
  2. Step 2: Convert to fraction form
    19,877.40/27,431.32 = 10,925.13/x
  3. Step 3: Cross multiply
    19,877.40x = 27,431.32 × 10,925.13
  4. Step 4: Simplify right side
    19,877.40x = 299,690,682.45
  5. Step 5: Solve for x
    x = 299,690,682.45/19,877.40
  6. Step 6: Final answer
    x = 15,076.96

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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.