Home / 19,875.06-27,428.31-10,922.90

Finding the Fourth Proportional to 19,875.06, 27,428.31 and 10,922.90

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Solution

The fourth proportional to 19,875.06, 27,428.31 and 10,922.90 is: 15,073.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.06 : 27,428.31 = 10,922.90 : x
  2. Step 2: Convert to fraction form
    19,875.06/27,428.31 = 10,922.90/x
  3. Step 3: Cross multiply
    19,875.06x = 27,428.31 × 10,922.90
  4. Step 4: Simplify right side
    19,875.06x = 299,596,550.16
  5. Step 5: Solve for x
    x = 299,596,550.16/19,875.06
  6. Step 6: Final answer
    x = 15,073.99

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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.