Home / 30,353.60-45,530.40-16,320.23

Finding the Fourth Proportional to 30,353.60, 45,530.40 and 16,320.23

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Solution

The fourth proportional to 30,353.60, 45,530.40 and 16,320.23 is: 24,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,353.60 : 45,530.40 = 16,320.23 : x
  2. Step 2: Convert to fraction form
    30,353.60/45,530.40 = 16,320.23/x
  3. Step 3: Cross multiply
    30,353.60x = 45,530.40 × 16,320.23
  4. Step 4: Simplify right side
    30,353.60x = 743,066,768.59
  5. Step 5: Solve for x
    x = 743,066,768.59/30,353.60
  6. Step 6: Final answer
    x = 24,480.35

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Double scale
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Similar ratio
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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.