Home / 30,587.54-42,210.59-18,650.16

Finding the Fourth Proportional to 30,587.54, 42,210.59 and 18,650.16

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Solution

The fourth proportional to 30,587.54, 42,210.59 and 18,650.16 is: 25,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.54 : 42,210.59 = 18,650.16 : x
  2. Step 2: Convert to fraction form
    30,587.54/42,210.59 = 18,650.16/x
  3. Step 3: Cross multiply
    30,587.54x = 42,210.59 × 18,650.16
  4. Step 4: Simplify right side
    30,587.54x = 787,234,163.94
  5. Step 5: Solve for x
    x = 787,234,163.94/30,587.54
  6. Step 6: Final answer
    x = 25,737.09

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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.