Home / 26,102.20-39,123.78-12,963.64

Finding the Fourth Proportional to 26,102.20, 39,123.78 and 12,963.64

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Solution

The fourth proportional to 26,102.20, 39,123.78 and 12,963.64 is: 19,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,102.20 : 39,123.78 = 12,963.64 : x
  2. Step 2: Convert to fraction form
    26,102.20/39,123.78 = 12,963.64/x
  3. Step 3: Cross multiply
    26,102.20x = 39,123.78 × 12,963.64
  4. Step 4: Simplify right side
    26,102.20x = 507,186,599.36
  5. Step 5: Solve for x
    x = 507,186,599.36/26,102.20
  6. Step 6: Final answer
    x = 19,430.80

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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.