Home / 28,790.93-39,730.95-16,215.68

Finding the Fourth Proportional to 28,790.93, 39,730.95 and 16,215.68

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Solution

The fourth proportional to 28,790.93, 39,730.95 and 16,215.68 is: 22,377.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.93 : 39,730.95 = 16,215.68 : x
  2. Step 2: Convert to fraction form
    28,790.93/39,730.95 = 16,215.68/x
  3. Step 3: Cross multiply
    28,790.93x = 39,730.95 × 16,215.68
  4. Step 4: Simplify right side
    28,790.93x = 644,264,172.64
  5. Step 5: Solve for x
    x = 644,264,172.64/28,790.93
  6. Step 6: Final answer
    x = 22,377.33

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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.