Home / 19,878.98-27,431.61-10,926.26

Finding the Fourth Proportional to 19,878.98, 27,431.61 and 10,926.26

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Solution

The fourth proportional to 19,878.98, 27,431.61 and 10,926.26 is: 15,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.98 : 27,431.61 = 10,926.26 : x
  2. Step 2: Convert to fraction form
    19,878.98/27,431.61 = 10,926.26/x
  3. Step 3: Cross multiply
    19,878.98x = 27,431.61 × 10,926.26
  4. Step 4: Simplify right side
    19,878.98x = 299,724,903.08
  5. Step 5: Solve for x
    x = 299,724,903.08/19,878.98
  6. Step 6: Final answer
    x = 15,077.48

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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.