Home / 28,636.89-39,510.83-18,565.76

Finding the Fourth Proportional to 28,636.89, 39,510.83 and 18,565.76

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Solution

The fourth proportional to 28,636.89, 39,510.83 and 18,565.76 is: 25,615.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636.89 : 39,510.83 = 18,565.76 : x
  2. Step 2: Convert to fraction form
    28,636.89/39,510.83 = 18,565.76/x
  3. Step 3: Cross multiply
    28,636.89x = 39,510.83 × 18,565.76
  4. Step 4: Simplify right side
    28,636.89x = 733,548,296.80
  5. Step 5: Solve for x
    x = 733,548,296.80/28,636.89
  6. Step 6: Final answer
    x = 25,615.50

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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.