Home / 19,740.89-27,242.43-10,666.25

Finding the Fourth Proportional to 19,740.89, 27,242.43 and 10,666.25

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Solution

The fourth proportional to 19,740.89, 27,242.43 and 10,666.25 is: 14,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.89 : 27,242.43 = 10,666.25 : x
  2. Step 2: Convert to fraction form
    19,740.89/27,242.43 = 10,666.25/x
  3. Step 3: Cross multiply
    19,740.89x = 27,242.43 × 10,666.25
  4. Step 4: Simplify right side
    19,740.89x = 290,574,432.78
  5. Step 5: Solve for x
    x = 290,574,432.78/19,740.89
  6. Step 6: Final answer
    x = 14,719.42

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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.