Home / 28,400.58-39,193.08-15,654.24

Finding the Fourth Proportional to 28,400.58, 39,193.08 and 15,654.24

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Solution

The fourth proportional to 28,400.58, 39,193.08 and 15,654.24 is: 21,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.58 : 39,193.08 = 15,654.24 : x
  2. Step 2: Convert to fraction form
    28,400.58/39,193.08 = 15,654.24/x
  3. Step 3: Cross multiply
    28,400.58x = 39,193.08 × 15,654.24
  4. Step 4: Simplify right side
    28,400.58x = 613,537,880.66
  5. Step 5: Solve for x
    x = 613,537,880.66/28,400.58
  6. Step 6: Final answer
    x = 21,603.01

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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.