Home / 20,814.09-28,726.85-15,472.01

Finding the Fourth Proportional to 20,814.09, 28,726.85 and 15,472.01

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Solution

The fourth proportional to 20,814.09, 28,726.85 and 15,472.01 is: 21,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.09 : 28,726.85 = 15,472.01 : x
  2. Step 2: Convert to fraction form
    20,814.09/28,726.85 = 15,472.01/x
  3. Step 3: Cross multiply
    20,814.09x = 28,726.85 × 15,472.01
  4. Step 4: Simplify right side
    20,814.09x = 444,461,925.38
  5. Step 5: Solve for x
    x = 444,461,925.38/20,814.09
  6. Step 6: Final answer
    x = 21,353.90

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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.