Home / 36,071.40-54,107.10-12,700.20

Finding the Fourth Proportional to 36,071.40, 54,107.10 and 12,700.20

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Solution

The fourth proportional to 36,071.40, 54,107.10 and 12,700.20 is: 19,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,071.40 : 54,107.10 = 12,700.20 : x
  2. Step 2: Convert to fraction form
    36,071.40/54,107.10 = 12,700.20/x
  3. Step 3: Cross multiply
    36,071.40x = 54,107.10 × 12,700.20
  4. Step 4: Simplify right side
    36,071.40x = 687,170,991.42
  5. Step 5: Solve for x
    x = 687,170,991.42/36,071.40
  6. Step 6: Final answer
    x = 19,050.30

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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.