Home / 20,425.47-30,623.87-10,433.24

Finding the Fourth Proportional to 20,425.47, 30,623.87 and 10,433.24

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Solution

The fourth proportional to 20,425.47, 30,623.87 and 10,433.24 is: 15,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.47 : 30,623.87 = 10,433.24 : x
  2. Step 2: Convert to fraction form
    20,425.47/30,623.87 = 10,433.24/x
  3. Step 3: Cross multiply
    20,425.47x = 30,623.87 × 10,433.24
  4. Step 4: Simplify right side
    20,425.47x = 319,506,173.24
  5. Step 5: Solve for x
    x = 319,506,173.24/20,425.47
  6. Step 6: Final answer
    x = 15,642.54

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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.