Home / 32,420.37-44,748.60-21,120.87

Finding the Fourth Proportional to 32,420.37, 44,748.60 and 21,120.87

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Solution

The fourth proportional to 32,420.37, 44,748.60 and 21,120.87 is: 29,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,420.37 : 44,748.60 = 21,120.87 : x
  2. Step 2: Convert to fraction form
    32,420.37/44,748.60 = 21,120.87/x
  3. Step 3: Cross multiply
    32,420.37x = 44,748.60 × 21,120.87
  4. Step 4: Simplify right side
    32,420.37x = 945,129,363.28
  5. Step 5: Solve for x
    x = 945,129,363.28/32,420.37
  6. Step 6: Final answer
    x = 29,152.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.