Home / 28,227.18-38,953.56-15,651.90

Finding the Fourth Proportional to 28,227.18, 38,953.56 and 15,651.90

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Solution

The fourth proportional to 28,227.18, 38,953.56 and 15,651.90 is: 21,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.18 : 38,953.56 = 15,651.90 : x
  2. Step 2: Convert to fraction form
    28,227.18/38,953.56 = 15,651.90/x
  3. Step 3: Cross multiply
    28,227.18x = 38,953.56 × 15,651.90
  4. Step 4: Simplify right side
    28,227.18x = 609,697,225.76
  5. Step 5: Solve for x
    x = 609,697,225.76/28,227.18
  6. Step 6: Final answer
    x = 21,599.65

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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.