Home / 15,420.57-23,130.77-3,733.79

Finding the Fourth Proportional to 15,420.57, 23,130.77 and 3,733.79

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Solution

The fourth proportional to 15,420.57, 23,130.77 and 3,733.79 is: 5,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.57 : 23,130.77 = 3,733.79 : x
  2. Step 2: Convert to fraction form
    15,420.57/23,130.77 = 3,733.79/x
  3. Step 3: Cross multiply
    15,420.57x = 23,130.77 × 3,733.79
  4. Step 4: Simplify right side
    15,420.57x = 86,365,331.40
  5. Step 5: Solve for x
    x = 86,365,331.40/15,420.57
  6. Step 6: Final answer
    x = 5,600.66

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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.