Home / 26,720.20-40,094.70-11,139.40

Finding the Fourth Proportional to 26,720.20, 40,094.70 and 11,139.40

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Solution

The fourth proportional to 26,720.20, 40,094.70 and 11,139.40 is: 16,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,720.20 : 40,094.70 = 11,139.40 : x
  2. Step 2: Convert to fraction form
    26,720.20/40,094.70 = 11,139.40/x
  3. Step 3: Cross multiply
    26,720.20x = 40,094.70 × 11,139.40
  4. Step 4: Simplify right side
    26,720.20x = 446,630,901.18
  5. Step 5: Solve for x
    x = 446,630,901.18/26,720.20
  6. Step 6: Final answer
    x = 16,715.10

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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.