Home / 28,283.68-42,390.69-11,633.32

Finding the Fourth Proportional to 28,283.68, 42,390.69 and 11,633.32

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Solution

The fourth proportional to 28,283.68, 42,390.69 and 11,633.32 is: 17,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.68 : 42,390.69 = 11,633.32 : x
  2. Step 2: Convert to fraction form
    28,283.68/42,390.69 = 11,633.32/x
  3. Step 3: Cross multiply
    28,283.68x = 42,390.69 × 11,633.32
  4. Step 4: Simplify right side
    28,283.68x = 493,144,461.79
  5. Step 5: Solve for x
    x = 493,144,461.79/28,283.68
  6. Step 6: Final answer
    x = 17,435.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.