Home / 19,875.35-27,428.51-10,923.09

Finding the Fourth Proportional to 19,875.35, 27,428.51 and 10,923.09

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Solution

The fourth proportional to 19,875.35, 27,428.51 and 10,923.09 is: 15,074.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.35 : 27,428.51 = 10,923.09 : x
  2. Step 2: Convert to fraction form
    19,875.35/27,428.51 = 10,923.09/x
  3. Step 3: Cross multiply
    19,875.35x = 27,428.51 × 10,923.09
  4. Step 4: Simplify right side
    19,875.35x = 299,604,028.68
  5. Step 5: Solve for x
    x = 299,604,028.68/19,875.35
  6. Step 6: Final answer
    x = 15,074.15

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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.