Home / 28,173.94-38,881.25-15,598.69

Finding the Fourth Proportional to 28,173.94, 38,881.25 and 15,598.69

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Solution

The fourth proportional to 28,173.94, 38,881.25 and 15,598.69 is: 21,526.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.94 : 38,881.25 = 15,598.69 : x
  2. Step 2: Convert to fraction form
    28,173.94/38,881.25 = 15,598.69/x
  3. Step 3: Cross multiply
    28,173.94x = 38,881.25 × 15,598.69
  4. Step 4: Simplify right side
    28,173.94x = 606,496,448.86
  5. Step 5: Solve for x
    x = 606,496,448.86/28,173.94
  6. Step 6: Final answer
    x = 21,526.86

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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.