Home / 20,365.65-28,127.93-16,224.93

Finding the Fourth Proportional to 20,365.65, 28,127.93 and 16,224.93

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Solution

The fourth proportional to 20,365.65, 28,127.93 and 16,224.93 is: 22,408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.65 : 28,127.93 = 16,224.93 : x
  2. Step 2: Convert to fraction form
    20,365.65/28,127.93 = 16,224.93/x
  3. Step 3: Cross multiply
    20,365.65x = 28,127.93 × 16,224.93
  4. Step 4: Simplify right side
    20,365.65x = 456,373,614.17
  5. Step 5: Solve for x
    x = 456,373,614.17/20,365.65
  6. Step 6: Final answer
    x = 22,408.99

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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.