Home / 19,018.80-28,472.04-14,110.20

Finding the Fourth Proportional to 19,018.80, 28,472.04 and 14,110.20

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Solution

The fourth proportional to 19,018.80, 28,472.04 and 14,110.20 is: 21,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.80 : 28,472.04 = 14,110.20 : x
  2. Step 2: Convert to fraction form
    19,018.80/28,472.04 = 14,110.20/x
  3. Step 3: Cross multiply
    19,018.80x = 28,472.04 × 14,110.20
  4. Step 4: Simplify right side
    19,018.80x = 401,746,178.81
  5. Step 5: Solve for x
    x = 401,746,178.81/19,018.80
  6. Step 6: Final answer
    x = 21,123.63

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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.