Home / 29,428.47-40,628.03-19,386.09

Finding the Fourth Proportional to 29,428.47, 40,628.03 and 19,386.09

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Solution

The fourth proportional to 29,428.47, 40,628.03 and 19,386.09 is: 26,763.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,428.47 : 40,628.03 = 19,386.09 : x
  2. Step 2: Convert to fraction form
    29,428.47/40,628.03 = 19,386.09/x
  3. Step 3: Cross multiply
    29,428.47x = 40,628.03 × 19,386.09
  4. Step 4: Simplify right side
    29,428.47x = 787,618,549.17
  5. Step 5: Solve for x
    x = 787,618,549.17/29,428.47
  6. Step 6: Final answer
    x = 26,763.83

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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.