Home / 19,380.49-26,742.87-10,881.47

Finding the Fourth Proportional to 19,380.49, 26,742.87 and 10,881.47

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Solution

The fourth proportional to 19,380.49, 26,742.87 and 10,881.47 is: 15,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.49 : 26,742.87 = 10,881.47 : x
  2. Step 2: Convert to fraction form
    19,380.49/26,742.87 = 10,881.47/x
  3. Step 3: Cross multiply
    19,380.49x = 26,742.87 × 10,881.47
  4. Step 4: Simplify right side
    19,380.49x = 291,001,804.48
  5. Step 5: Solve for x
    x = 291,001,804.48/19,380.49
  6. Step 6: Final answer
    x = 15,015.20

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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.