Home / 28,279.65-39,026.24-15,533.13

Finding the Fourth Proportional to 28,279.65, 39,026.24 and 15,533.13

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Solution

The fourth proportional to 28,279.65, 39,026.24 and 15,533.13 is: 21,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.65 : 39,026.24 = 15,533.13 : x
  2. Step 2: Convert to fraction form
    28,279.65/39,026.24 = 15,533.13/x
  3. Step 3: Cross multiply
    28,279.65x = 39,026.24 × 15,533.13
  4. Step 4: Simplify right side
    28,279.65x = 606,199,815.39
  5. Step 5: Solve for x
    x = 606,199,815.39/28,279.65
  6. Step 6: Final answer
    x = 21,435.90

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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.