Home / 19,459.61-29,028.17-18,886.04

Finding the Fourth Proportional to 19,459.61, 29,028.17 and 18,886.04

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Solution

The fourth proportional to 19,459.61, 29,028.17 and 18,886.04 is: 28,172.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,459.61 : 29,028.17 = 18,886.04 : x
  2. Step 2: Convert to fraction form
    19,459.61/29,028.17 = 18,886.04/x
  3. Step 3: Cross multiply
    19,459.61x = 29,028.17 × 18,886.04
  4. Step 4: Simplify right side
    19,459.61x = 548,227,179.75
  5. Step 5: Solve for x
    x = 548,227,179.75/19,459.61
  6. Step 6: Final answer
    x = 28,172.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.