Home / 21,151.52-31,703.28-16,436.48

Finding the Fourth Proportional to 21,151.52, 31,703.28 and 16,436.48

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Solution

The fourth proportional to 21,151.52, 31,703.28 and 16,436.48 is: 24,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,151.52 : 31,703.28 = 16,436.48 : x
  2. Step 2: Convert to fraction form
    21,151.52/31,703.28 = 16,436.48/x
  3. Step 3: Cross multiply
    21,151.52x = 31,703.28 × 16,436.48
  4. Step 4: Simplify right side
    21,151.52x = 521,090,327.65
  5. Step 5: Solve for x
    x = 521,090,327.65/21,151.52
  6. Step 6: Final answer
    x = 24,636.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.