Home / 28,887.61-39,864.40-16,141.05

Finding the Fourth Proportional to 28,887.61, 39,864.40 and 16,141.05

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Solution

The fourth proportional to 28,887.61, 39,864.40 and 16,141.05 is: 22,274.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.61 : 39,864.40 = 16,141.05 : x
  2. Step 2: Convert to fraction form
    28,887.61/39,864.40 = 16,141.05/x
  3. Step 3: Cross multiply
    28,887.61x = 39,864.40 × 16,141.05
  4. Step 4: Simplify right side
    28,887.61x = 643,453,273.62
  5. Step 5: Solve for x
    x = 643,453,273.62/28,887.61
  6. Step 6: Final answer
    x = 22,274.37

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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.