Home / 14,559.80-20,105.12-13,812.45

Finding the Fourth Proportional to 14,559.80, 20,105.12 and 13,812.45

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Solution

The fourth proportional to 14,559.80, 20,105.12 and 13,812.45 is: 19,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,559.80 : 20,105.12 = 13,812.45 : x
  2. Step 2: Convert to fraction form
    14,559.80/20,105.12 = 13,812.45/x
  3. Step 3: Cross multiply
    14,559.80x = 20,105.12 × 13,812.45
  4. Step 4: Simplify right side
    14,559.80x = 277,700,964.74
  5. Step 5: Solve for x
    x = 277,700,964.74/14,559.80
  6. Step 6: Final answer
    x = 19,073.13

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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.