Home / 36,870.70-55,310.10-13,502.20

Finding the Fourth Proportional to 36,870.70, 55,310.10 and 13,502.20

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Solution

The fourth proportional to 36,870.70, 55,310.10 and 13,502.20 is: 20,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,870.70 : 55,310.10 = 13,502.20 : x
  2. Step 2: Convert to fraction form
    36,870.70/55,310.10 = 13,502.20/x
  3. Step 3: Cross multiply
    36,870.70x = 55,310.10 × 13,502.20
  4. Step 4: Simplify right side
    36,870.70x = 746,808,032.22
  5. Step 5: Solve for x
    x = 746,808,032.22/36,870.70
  6. Step 6: Final answer
    x = 20,254.78

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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.