Home / 19,812.40-27,341.75-10,860.89

Finding the Fourth Proportional to 19,812.40, 27,341.75 and 10,860.89

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Solution

The fourth proportional to 19,812.40, 27,341.75 and 10,860.89 is: 14,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.40 : 27,341.75 = 10,860.89 : x
  2. Step 2: Convert to fraction form
    19,812.40/27,341.75 = 10,860.89/x
  3. Step 3: Cross multiply
    19,812.40x = 27,341.75 × 10,860.89
  4. Step 4: Simplify right side
    19,812.40x = 296,955,629.60
  5. Step 5: Solve for x
    x = 296,955,629.60/19,812.40
  6. Step 6: Final answer
    x = 14,988.37

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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.