Home / 15,420.48-23,214.76-10,520.98

Finding the Fourth Proportional to 15,420.48, 23,214.76 and 10,520.98

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Solution

The fourth proportional to 15,420.48, 23,214.76 and 10,520.98 is: 15,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.48 : 23,214.76 = 10,520.98 : x
  2. Step 2: Convert to fraction form
    15,420.48/23,214.76 = 10,520.98/x
  3. Step 3: Cross multiply
    15,420.48x = 23,214.76 × 10,520.98
  4. Step 4: Simplify right side
    15,420.48x = 244,242,025.66
  5. Step 5: Solve for x
    x = 244,242,025.66/15,420.48
  6. Step 6: Final answer
    x = 15,838.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.