Home / 28,872.17-39,816.55-19,164.46

Finding the Fourth Proportional to 28,872.17, 39,816.55 and 19,164.46

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Solution

The fourth proportional to 28,872.17, 39,816.55 and 19,164.46 is: 26,429.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.17 : 39,816.55 = 19,164.46 : x
  2. Step 2: Convert to fraction form
    28,872.17/39,816.55 = 19,164.46/x
  3. Step 3: Cross multiply
    28,872.17x = 39,816.55 × 19,164.46
  4. Step 4: Simplify right side
    28,872.17x = 763,062,679.81
  5. Step 5: Solve for x
    x = 763,062,679.81/28,872.17
  6. Step 6: Final answer
    x = 26,429.00

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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.