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Finding the Fourth Proportional to 28,656.90, 42,984.32 and 7,597.13

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Solution

The fourth proportional to 28,656.90, 42,984.32 and 7,597.13 is: 11,395.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.90 : 42,984.32 = 7,597.13 : x
  2. Step 2: Convert to fraction form
    28,656.90/42,984.32 = 7,597.13/x
  3. Step 3: Cross multiply
    28,656.90x = 42,984.32 × 7,597.13
  4. Step 4: Simplify right side
    28,656.90x = 326,557,214.09
  5. Step 5: Solve for x
    x = 326,557,214.09/28,656.90
  6. Step 6: Final answer
    x = 11,395.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.