Home / 15,018.45-22,400.73-14,151.21

Finding the Fourth Proportional to 15,018.45, 22,400.73 and 14,151.21

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Solution

The fourth proportional to 15,018.45, 22,400.73 and 14,151.21 is: 21,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.45 : 22,400.73 = 14,151.21 : x
  2. Step 2: Convert to fraction form
    15,018.45/22,400.73 = 14,151.21/x
  3. Step 3: Cross multiply
    15,018.45x = 22,400.73 × 14,151.21
  4. Step 4: Simplify right side
    15,018.45x = 316,997,434.38
  5. Step 5: Solve for x
    x = 316,997,434.38/15,018.45
  6. Step 6: Final answer
    x = 21,107.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.