Home / 20,663.04-28,476-16,179.36

Finding the Fourth Proportional to 20,663.04, 28,476 and 16,179.36

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Solution

The fourth proportional to 20,663.04, 28,476 and 16,179.36 is: 22,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663.04 : 28,476 = 16,179.36 : x
  2. Step 2: Convert to fraction form
    20,663.04/28,476 = 16,179.36/x
  3. Step 3: Cross multiply
    20,663.04x = 28,476 × 16,179.36
  4. Step 4: Simplify right side
    20,663.04x = 460,723,455.36
  5. Step 5: Solve for x
    x = 460,723,455.36/20,663.04
  6. Step 6: Final answer
    x = 22,296.98

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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.