Home / 42,928.20-64,402.24-13,344.44

Finding the Fourth Proportional to 42,928.20, 64,402.24 and 13,344.44

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Solution

The fourth proportional to 42,928.20, 64,402.24 and 13,344.44 is: 20,019.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,928.20 : 64,402.24 = 13,344.44 : x
  2. Step 2: Convert to fraction form
    42,928.20/64,402.24 = 13,344.44/x
  3. Step 3: Cross multiply
    42,928.20x = 64,402.24 × 13,344.44
  4. Step 4: Simplify right side
    42,928.20x = 859,411,827.55
  5. Step 5: Solve for x
    x = 859,411,827.55/42,928.20
  6. Step 6: Final answer
    x = 20,019.75

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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.