Home / 15,513.20-23,270.70-4,420.70

Finding the Fourth Proportional to 15,513.20, 23,270.70 and 4,420.70

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Solution

The fourth proportional to 15,513.20, 23,270.70 and 4,420.70 is: 6,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513.20 : 23,270.70 = 4,420.70 : x
  2. Step 2: Convert to fraction form
    15,513.20/23,270.70 = 4,420.70/x
  3. Step 3: Cross multiply
    15,513.20x = 23,270.70 × 4,420.70
  4. Step 4: Simplify right side
    15,513.20x = 102,872,783.49
  5. Step 5: Solve for x
    x = 102,872,783.49/15,513.20
  6. Step 6: Final answer
    x = 6,631.31

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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.