Home / 15,905.20-23,857.80-14,374.30

Finding the Fourth Proportional to 15,905.20, 23,857.80 and 14,374.30

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Solution

The fourth proportional to 15,905.20, 23,857.80 and 14,374.30 is: 21,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.20 : 23,857.80 = 14,374.30 : x
  2. Step 2: Convert to fraction form
    15,905.20/23,857.80 = 14,374.30/x
  3. Step 3: Cross multiply
    15,905.20x = 23,857.80 × 14,374.30
  4. Step 4: Simplify right side
    15,905.20x = 342,939,174.54
  5. Step 5: Solve for x
    x = 342,939,174.54/15,905.20
  6. Step 6: Final answer
    x = 21,561.45

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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.