Home / 28,423.68-39,224.93-15,677.35

Finding the Fourth Proportional to 28,423.68, 39,224.93 and 15,677.35

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Solution

The fourth proportional to 28,423.68, 39,224.93 and 15,677.35 is: 21,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.68 : 39,224.93 = 15,677.35 : x
  2. Step 2: Convert to fraction form
    28,423.68/39,224.93 = 15,677.35/x
  3. Step 3: Cross multiply
    28,423.68x = 39,224.93 × 15,677.35
  4. Step 4: Simplify right side
    28,423.68x = 614,942,956.34
  5. Step 5: Solve for x
    x = 614,942,956.34/28,423.68
  6. Step 6: Final answer
    x = 21,634.88

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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.