Home / 19,740.79-27,241.52-10,788.40

Finding the Fourth Proportional to 19,740.79, 27,241.52 and 10,788.40

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Solution

The fourth proportional to 19,740.79, 27,241.52 and 10,788.40 is: 14,887.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.79 : 27,241.52 = 10,788.40 : x
  2. Step 2: Convert to fraction form
    19,740.79/27,241.52 = 10,788.40/x
  3. Step 3: Cross multiply
    19,740.79x = 27,241.52 × 10,788.40
  4. Step 4: Simplify right side
    19,740.79x = 293,892,360.43
  5. Step 5: Solve for x
    x = 293,892,360.43/19,740.79
  6. Step 6: Final answer
    x = 14,887.57

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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.