Home / 28,249.75-38,984.62-15,503.01

Finding the Fourth Proportional to 28,249.75, 38,984.62 and 15,503.01

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Solution

The fourth proportional to 28,249.75, 38,984.62 and 15,503.01 is: 21,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.75 : 38,984.62 = 15,503.01 : x
  2. Step 2: Convert to fraction form
    28,249.75/38,984.62 = 15,503.01/x
  3. Step 3: Cross multiply
    28,249.75x = 38,984.62 × 15,503.01
  4. Step 4: Simplify right side
    28,249.75x = 604,378,953.71
  5. Step 5: Solve for x
    x = 604,378,953.71/28,249.75
  6. Step 6: Final answer
    x = 21,394.13

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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.