Home / 18,741.85-25,853.51-12,020.00

Finding the Fourth Proportional to 18,741.85, 25,853.51 and 12,020.00

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Solution

The fourth proportional to 18,741.85, 25,853.51 and 12,020.00 is: 16,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.85 : 25,853.51 = 12,020.00 : x
  2. Step 2: Convert to fraction form
    18,741.85/25,853.51 = 12,020.00/x
  3. Step 3: Cross multiply
    18,741.85x = 25,853.51 × 12,020.00
  4. Step 4: Simplify right side
    18,741.85x = 310,759,090.98
  5. Step 5: Solve for x
    x = 310,759,090.98/18,741.85
  6. Step 6: Final answer
    x = 16,581.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.