Home / 28,506.62-39,338.96-15,931.37

Finding the Fourth Proportional to 28,506.62, 39,338.96 and 15,931.37

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Solution

The fourth proportional to 28,506.62, 39,338.96 and 15,931.37 is: 21,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.62 : 39,338.96 = 15,931.37 : x
  2. Step 2: Convert to fraction form
    28,506.62/39,338.96 = 15,931.37/x
  3. Step 3: Cross multiply
    28,506.62x = 39,338.96 × 15,931.37
  4. Step 4: Simplify right side
    28,506.62x = 626,723,545.87
  5. Step 5: Solve for x
    x = 626,723,545.87/28,506.62
  6. Step 6: Final answer
    x = 21,985.19

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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.