Home / 28,609.74-42,943.77-19,725.66

Finding the Fourth Proportional to 28,609.74, 42,943.77 and 19,725.66

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Solution

The fourth proportional to 28,609.74, 42,943.77 and 19,725.66 is: 29,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.74 : 42,943.77 = 19,725.66 : x
  2. Step 2: Convert to fraction form
    28,609.74/42,943.77 = 19,725.66/x
  3. Step 3: Cross multiply
    28,609.74x = 42,943.77 × 19,725.66
  4. Step 4: Simplify right side
    28,609.74x = 847,094,206.14
  5. Step 5: Solve for x
    x = 847,094,206.14/28,609.74
  6. Step 6: Final answer
    x = 29,608.60

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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.