Home / 28,124.63-38,812.79-15,550.19

Finding the Fourth Proportional to 28,124.63, 38,812.79 and 15,550.19

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Solution

The fourth proportional to 28,124.63, 38,812.79 and 15,550.19 is: 21,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124.63 : 38,812.79 = 15,550.19 : x
  2. Step 2: Convert to fraction form
    28,124.63/38,812.79 = 15,550.19/x
  3. Step 3: Cross multiply
    28,124.63x = 38,812.79 × 15,550.19
  4. Step 4: Simplify right side
    28,124.63x = 603,546,103.74
  5. Step 5: Solve for x
    x = 603,546,103.74/28,124.63
  6. Step 6: Final answer
    x = 21,459.70

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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.