Home / 28,423.58-39,224.50-15,677.57

Finding the Fourth Proportional to 28,423.58, 39,224.50 and 15,677.57

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Solution

The fourth proportional to 28,423.58, 39,224.50 and 15,677.57 is: 21,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.58 : 39,224.50 = 15,677.57 : x
  2. Step 2: Convert to fraction form
    28,423.58/39,224.50 = 15,677.57/x
  3. Step 3: Cross multiply
    28,423.58x = 39,224.50 × 15,677.57
  4. Step 4: Simplify right side
    28,423.58x = 614,944,903.33
  5. Step 5: Solve for x
    x = 614,944,903.33/28,423.58
  6. Step 6: Final answer
    x = 21,635.03

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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.