Home / 28,331.88-39,094.44-19,153.40

Finding the Fourth Proportional to 28,331.88, 39,094.44 and 19,153.40

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Solution

The fourth proportional to 28,331.88, 39,094.44 and 19,153.40 is: 26,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.88 : 39,094.44 = 19,153.40 : x
  2. Step 2: Convert to fraction form
    28,331.88/39,094.44 = 19,153.40/x
  3. Step 3: Cross multiply
    28,331.88x = 39,094.44 × 19,153.40
  4. Step 4: Simplify right side
    28,331.88x = 748,791,640.32
  5. Step 5: Solve for x
    x = 748,791,640.32/28,331.88
  6. Step 6: Final answer
    x = 26,429.30

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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.