Home / 28,134.96-38,827.26-15,389.01

Finding the Fourth Proportional to 28,134.96, 38,827.26 and 15,389.01

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Solution

The fourth proportional to 28,134.96, 38,827.26 and 15,389.01 is: 21,237.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.96 : 38,827.26 = 15,389.01 : x
  2. Step 2: Convert to fraction form
    28,134.96/38,827.26 = 15,389.01/x
  3. Step 3: Cross multiply
    28,134.96x = 38,827.26 × 15,389.01
  4. Step 4: Simplify right side
    28,134.96x = 597,513,092.41
  5. Step 5: Solve for x
    x = 597,513,092.41/28,134.96
  6. Step 6: Final answer
    x = 21,237.39

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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.