Home / 19,047.20-26,271.64-16,390.04

Finding the Fourth Proportional to 19,047.20, 26,271.64 and 16,390.04

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Solution

The fourth proportional to 19,047.20, 26,271.64 and 16,390.04 is: 22,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,047.20 : 26,271.64 = 16,390.04 : x
  2. Step 2: Convert to fraction form
    19,047.20/26,271.64 = 16,390.04/x
  3. Step 3: Cross multiply
    19,047.20x = 26,271.64 × 16,390.04
  4. Step 4: Simplify right side
    19,047.20x = 430,593,230.47
  5. Step 5: Solve for x
    x = 430,593,230.47/19,047.20
  6. Step 6: Final answer
    x = 22,606.64

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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.