Home / 20,950.86-28,897.10-14,224.81

Finding the Fourth Proportional to 20,950.86, 28,897.10 and 14,224.81

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Solution

The fourth proportional to 20,950.86, 28,897.10 and 14,224.81 is: 19,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.86 : 28,897.10 = 14,224.81 : x
  2. Step 2: Convert to fraction form
    20,950.86/28,897.10 = 14,224.81/x
  3. Step 3: Cross multiply
    20,950.86x = 28,897.10 × 14,224.81
  4. Step 4: Simplify right side
    20,950.86x = 411,055,872.34
  5. Step 5: Solve for x
    x = 411,055,872.34/20,950.86
  6. Step 6: Final answer
    x = 19,620.00

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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.