Home / 43,291.20-64,905.12-13,692.48

Finding the Fourth Proportional to 43,291.20, 64,905.12 and 13,692.48

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Solution

The fourth proportional to 43,291.20, 64,905.12 and 13,692.48 is: 20,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,291.20 : 64,905.12 = 13,692.48 : x
  2. Step 2: Convert to fraction form
    43,291.20/64,905.12 = 13,692.48/x
  3. Step 3: Cross multiply
    43,291.20x = 64,905.12 × 13,692.48
  4. Step 4: Simplify right side
    43,291.20x = 888,712,057.50
  5. Step 5: Solve for x
    x = 888,712,057.50/43,291.20
  6. Step 6: Final answer
    x = 20,528.70

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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.