Home / 28,141.18-38,835.90-15,395.26

Finding the Fourth Proportional to 28,141.18, 38,835.90 and 15,395.26

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Solution

The fourth proportional to 28,141.18, 38,835.90 and 15,395.26 is: 21,246.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.18 : 38,835.90 = 15,395.26 : x
  2. Step 2: Convert to fraction form
    28,141.18/38,835.90 = 15,395.26/x
  3. Step 3: Cross multiply
    28,141.18x = 38,835.90 × 15,395.26
  4. Step 4: Simplify right side
    28,141.18x = 597,888,777.83
  5. Step 5: Solve for x
    x = 597,888,777.83/28,141.18
  6. Step 6: Final answer
    x = 21,246.05

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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.