Home / 28,167.02-38,870.58-15,591.77

Finding the Fourth Proportional to 28,167.02, 38,870.58 and 15,591.77

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Solution

The fourth proportional to 28,167.02, 38,870.58 and 15,591.77 is: 21,516.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167.02 : 38,870.58 = 15,591.77 : x
  2. Step 2: Convert to fraction form
    28,167.02/38,870.58 = 15,591.77/x
  3. Step 3: Cross multiply
    28,167.02x = 38,870.58 × 15,591.77
  4. Step 4: Simplify right side
    28,167.02x = 606,061,143.13
  5. Step 5: Solve for x
    x = 606,061,143.13/28,167.02
  6. Step 6: Final answer
    x = 21,516.69

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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.