Home / 28,248.04-38,976.01-16,308.78

Finding the Fourth Proportional to 28,248.04, 38,976.01 and 16,308.78

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Solution

The fourth proportional to 28,248.04, 38,976.01 and 16,308.78 is: 22,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.04 : 38,976.01 = 16,308.78 : x
  2. Step 2: Convert to fraction form
    28,248.04/38,976.01 = 16,308.78/x
  3. Step 3: Cross multiply
    28,248.04x = 38,976.01 × 16,308.78
  4. Step 4: Simplify right side
    28,248.04x = 635,651,172.37
  5. Step 5: Solve for x
    x = 635,651,172.37/28,248.04
  6. Step 6: Final answer
    x = 22,502.49

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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.