Home / 19,878.62-27,433.49-10,927.31

Finding the Fourth Proportional to 19,878.62, 27,433.49 and 10,927.31

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Solution

The fourth proportional to 19,878.62, 27,433.49 and 10,927.31 is: 15,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.62 : 27,433.49 = 10,927.31 : x
  2. Step 2: Convert to fraction form
    19,878.62/27,433.49 = 10,927.31/x
  3. Step 3: Cross multiply
    19,878.62x = 27,433.49 × 10,927.31
  4. Step 4: Simplify right side
    19,878.62x = 299,774,057.81
  5. Step 5: Solve for x
    x = 299,774,057.81/19,878.62
  6. Step 6: Final answer
    x = 15,080.23

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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.