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Finding the Fourth Proportional to 26,985.20, 40,477.80 and 16,617.20

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Solution

The fourth proportional to 26,985.20, 40,477.80 and 16,617.20 is: 24,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,985.20 : 40,477.80 = 16,617.20 : x
  2. Step 2: Convert to fraction form
    26,985.20/40,477.80 = 16,617.20/x
  3. Step 3: Cross multiply
    26,985.20x = 40,477.80 × 16,617.20
  4. Step 4: Simplify right side
    26,985.20x = 672,627,698.16
  5. Step 5: Solve for x
    x = 672,627,698.16/26,985.20
  6. Step 6: Final answer
    x = 24,925.80

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