Home / 26,729.40-40,094.10-12,905.40

Finding the Fourth Proportional to 26,729.40, 40,094.10 and 12,905.40

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Solution

The fourth proportional to 26,729.40, 40,094.10 and 12,905.40 is: 19,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,729.40 : 40,094.10 = 12,905.40 : x
  2. Step 2: Convert to fraction form
    26,729.40/40,094.10 = 12,905.40/x
  3. Step 3: Cross multiply
    26,729.40x = 40,094.10 × 12,905.40
  4. Step 4: Simplify right side
    26,729.40x = 517,430,398.14
  5. Step 5: Solve for x
    x = 517,430,398.14/26,729.40
  6. Step 6: Final answer
    x = 19,358.10

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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.