Home / 28,247.34-38,980.98-15,326.42

Finding the Fourth Proportional to 28,247.34, 38,980.98 and 15,326.42

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Solution

The fourth proportional to 28,247.34, 38,980.98 and 15,326.42 is: 21,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.34 : 38,980.98 = 15,326.42 : x
  2. Step 2: Convert to fraction form
    28,247.34/38,980.98 = 15,326.42/x
  3. Step 3: Cross multiply
    28,247.34x = 38,980.98 × 15,326.42
  4. Step 4: Simplify right side
    28,247.34x = 597,438,871.49
  5. Step 5: Solve for x
    x = 597,438,871.49/28,247.34
  6. Step 6: Final answer
    x = 21,150.27

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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.