Home / 19,878.74-27,432.43-10,926.01

Finding the Fourth Proportional to 19,878.74, 27,432.43 and 10,926.01

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Solution

The fourth proportional to 19,878.74, 27,432.43 and 10,926.01 is: 15,077.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.74 : 27,432.43 = 10,926.01 : x
  2. Step 2: Convert to fraction form
    19,878.74/27,432.43 = 10,926.01/x
  3. Step 3: Cross multiply
    19,878.74x = 27,432.43 × 10,926.01
  4. Step 4: Simplify right side
    19,878.74x = 299,727,004.50
  5. Step 5: Solve for x
    x = 299,727,004.50/19,878.74
  6. Step 6: Final answer
    x = 15,077.77

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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.