Home / 28,018.06-38,664.93-15,442.81

Finding the Fourth Proportional to 28,018.06, 38,664.93 and 15,442.81

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Solution

The fourth proportional to 28,018.06, 38,664.93 and 15,442.81 is: 21,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.06 : 38,664.93 = 15,442.81 : x
  2. Step 2: Convert to fraction form
    28,018.06/38,664.93 = 15,442.81/x
  3. Step 3: Cross multiply
    28,018.06x = 38,664.93 × 15,442.81
  4. Step 4: Simplify right side
    28,018.06x = 597,095,167.65
  5. Step 5: Solve for x
    x = 597,095,167.65/28,018.06
  6. Step 6: Final answer
    x = 21,311.08

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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.