Home / 30,587.27-42,205.73-17,155.44

Finding the Fourth Proportional to 30,587.27, 42,205.73 and 17,155.44

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Solution

The fourth proportional to 30,587.27, 42,205.73 and 17,155.44 is: 23,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.27 : 42,205.73 = 17,155.44 : x
  2. Step 2: Convert to fraction form
    30,587.27/42,205.73 = 17,155.44/x
  3. Step 3: Cross multiply
    30,587.27x = 42,205.73 × 17,155.44
  4. Step 4: Simplify right side
    30,587.27x = 724,057,782.89
  5. Step 5: Solve for x
    x = 724,057,782.89/30,587.27
  6. Step 6: Final answer
    x = 23,671.87

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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.