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Finding the Fourth Proportional to 29,465.30, 40,664.28 and 16,720.67

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Solution

The fourth proportional to 29,465.30, 40,664.28 and 16,720.67 is: 23,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,465.30 : 40,664.28 = 16,720.67 : x
  2. Step 2: Convert to fraction form
    29,465.30/40,664.28 = 16,720.67/x
  3. Step 3: Cross multiply
    29,465.30x = 40,664.28 × 16,720.67
  4. Step 4: Simplify right side
    29,465.30x = 679,934,006.67
  5. Step 5: Solve for x
    x = 679,934,006.67/29,465.30
  6. Step 6: Final answer
    x = 23,075.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.