Home / 28,985.64-39,985.56-17,041.38

Finding the Fourth Proportional to 28,985.64, 39,985.56 and 17,041.38

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Solution

The fourth proportional to 28,985.64, 39,985.56 and 17,041.38 is: 23,508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.64 : 39,985.56 = 17,041.38 : x
  2. Step 2: Convert to fraction form
    28,985.64/39,985.56 = 17,041.38/x
  3. Step 3: Cross multiply
    28,985.64x = 39,985.56 × 17,041.38
  4. Step 4: Simplify right side
    28,985.64x = 681,409,122.47
  5. Step 5: Solve for x
    x = 681,409,122.47/28,985.64
  6. Step 6: Final answer
    x = 23,508.51

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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.