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Finding the Fourth Proportional to 38,605, 57,907.50 and 10,903.72

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Solution

The fourth proportional to 38,605, 57,907.50 and 10,903.72 is: 16,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,605 : 57,907.50 = 10,903.72 : x
  2. Step 2: Convert to fraction form
    38,605/57,907.50 = 10,903.72/x
  3. Step 3: Cross multiply
    38,605x = 57,907.50 × 10,903.72
  4. Step 4: Simplify right side
    38,605x = 631,407,165.90
  5. Step 5: Solve for x
    x = 631,407,165.90/38,605
  6. Step 6: Final answer
    x = 16,355.58

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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.