Home / 15,420.00-23,128.28-4,327.12

Finding the Fourth Proportional to 15,420.00, 23,128.28 and 4,327.12

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Solution

The fourth proportional to 15,420.00, 23,128.28 and 4,327.12 is: 6,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.00 : 23,128.28 = 4,327.12 : x
  2. Step 2: Convert to fraction form
    15,420.00/23,128.28 = 4,327.12/x
  3. Step 3: Cross multiply
    15,420.00x = 23,128.28 × 4,327.12
  4. Step 4: Simplify right side
    15,420.00x = 100,078,890.80
  5. Step 5: Solve for x
    x = 100,078,890.80/15,420.00
  6. Step 6: Final answer
    x = 6,490.20

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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.