Home / 19,019.84-28,518.96-15,919.16

Finding the Fourth Proportional to 19,019.84, 28,518.96 and 15,919.16

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Solution

The fourth proportional to 19,019.84, 28,518.96 and 15,919.16 is: 23,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.84 : 28,518.96 = 15,919.16 : x
  2. Step 2: Convert to fraction form
    19,019.84/28,518.96 = 15,919.16/x
  3. Step 3: Cross multiply
    19,019.84x = 28,518.96 × 15,919.16
  4. Step 4: Simplify right side
    19,019.84x = 453,997,887.27
  5. Step 5: Solve for x
    x = 453,997,887.27/19,019.84
  6. Step 6: Final answer
    x = 23,869.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.