Home / 30,587.18-42,215.02-17,163.86

Finding the Fourth Proportional to 30,587.18, 42,215.02 and 17,163.86

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Solution

The fourth proportional to 30,587.18, 42,215.02 and 17,163.86 is: 23,688.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.18 : 42,215.02 = 17,163.86 : x
  2. Step 2: Convert to fraction form
    30,587.18/42,215.02 = 17,163.86/x
  3. Step 3: Cross multiply
    30,587.18x = 42,215.02 × 17,163.86
  4. Step 4: Simplify right side
    30,587.18x = 724,572,693.18
  5. Step 5: Solve for x
    x = 724,572,693.18/30,587.18
  6. Step 6: Final answer
    x = 23,688.77

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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.