Home / 19,699.84-27,146.64-19,454.56

Finding the Fourth Proportional to 19,699.84, 27,146.64 and 19,454.56

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Solution

The fourth proportional to 19,699.84, 27,146.64 and 19,454.56 is: 26,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.84 : 27,146.64 = 19,454.56 : x
  2. Step 2: Convert to fraction form
    19,699.84/27,146.64 = 19,454.56/x
  3. Step 3: Cross multiply
    19,699.84x = 27,146.64 × 19,454.56
  4. Step 4: Simplify right side
    19,699.84x = 528,125,936.68
  5. Step 5: Solve for x
    x = 528,125,936.68/19,699.84
  6. Step 6: Final answer
    x = 26,808.64

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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.