Home / 28,677.93-39,573.57-15,930.06

Finding the Fourth Proportional to 28,677.93, 39,573.57 and 15,930.06

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Solution

The fourth proportional to 28,677.93, 39,573.57 and 15,930.06 is: 21,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.93 : 39,573.57 = 15,930.06 : x
  2. Step 2: Convert to fraction form
    28,677.93/39,573.57 = 15,930.06/x
  3. Step 3: Cross multiply
    28,677.93x = 39,573.57 × 15,930.06
  4. Step 4: Simplify right side
    28,677.93x = 630,409,344.51
  5. Step 5: Solve for x
    x = 630,409,344.51/28,677.93
  6. Step 6: Final answer
    x = 21,982.39

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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.