Home / 15,420.51-23,129.04-4,327.62

Finding the Fourth Proportional to 15,420.51, 23,129.04 and 4,327.62

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Solution

The fourth proportional to 15,420.51, 23,129.04 and 4,327.62 is: 6,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.51 : 23,129.04 = 4,327.62 : x
  2. Step 2: Convert to fraction form
    15,420.51/23,129.04 = 4,327.62/x
  3. Step 3: Cross multiply
    15,420.51x = 23,129.04 × 4,327.62
  4. Step 4: Simplify right side
    15,420.51x = 100,093,674.45
  5. Step 5: Solve for x
    x = 100,093,674.45/15,420.51
  6. Step 6: Final answer
    x = 6,490.95

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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.