Home / 19,941.79-27,519.75-10,989.10

Finding the Fourth Proportional to 19,941.79, 27,519.75 and 10,989.10

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Solution

The fourth proportional to 19,941.79, 27,519.75 and 10,989.10 is: 15,165.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.79 : 27,519.75 = 10,989.10 : x
  2. Step 2: Convert to fraction form
    19,941.79/27,519.75 = 10,989.10/x
  3. Step 3: Cross multiply
    19,941.79x = 27,519.75 × 10,989.10
  4. Step 4: Simplify right side
    19,941.79x = 302,417,284.73
  5. Step 5: Solve for x
    x = 302,417,284.73/19,941.79
  6. Step 6: Final answer
    x = 15,165.00

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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.