Home / 15,431.40-23,145.57-4,337.84

Finding the Fourth Proportional to 15,431.40, 23,145.57 and 4,337.84

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Solution

The fourth proportional to 15,431.40, 23,145.57 and 4,337.84 is: 6,506.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.40 : 23,145.57 = 4,337.84 : x
  2. Step 2: Convert to fraction form
    15,431.40/23,145.57 = 4,337.84/x
  3. Step 3: Cross multiply
    15,431.40x = 23,145.57 × 4,337.84
  4. Step 4: Simplify right side
    15,431.40x = 100,401,663.64
  5. Step 5: Solve for x
    x = 100,401,663.64/15,431.40
  6. Step 6: Final answer
    x = 6,506.32

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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.