Home / 19,740.51-27,241.75-10,787.88

Finding the Fourth Proportional to 19,740.51, 27,241.75 and 10,787.88

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Solution

The fourth proportional to 19,740.51, 27,241.75 and 10,787.88 is: 14,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.51 : 27,241.75 = 10,787.88 : x
  2. Step 2: Convert to fraction form
    19,740.51/27,241.75 = 10,787.88/x
  3. Step 3: Cross multiply
    19,740.51x = 27,241.75 × 10,787.88
  4. Step 4: Simplify right side
    19,740.51x = 293,880,845.63
  5. Step 5: Solve for x
    x = 293,880,845.63/19,740.51
  6. Step 6: Final answer
    x = 14,887.20

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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.