Home / 30,147.05-41,603.28-16,718.47

Finding the Fourth Proportional to 30,147.05, 41,603.28 and 16,718.47

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Solution

The fourth proportional to 30,147.05, 41,603.28 and 16,718.47 is: 23,071.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.05 : 41,603.28 = 16,718.47 : x
  2. Step 2: Convert to fraction form
    30,147.05/41,603.28 = 16,718.47/x
  3. Step 3: Cross multiply
    30,147.05x = 41,603.28 × 16,718.47
  4. Step 4: Simplify right side
    30,147.05x = 695,542,980.57
  5. Step 5: Solve for x
    x = 695,542,980.57/30,147.05
  6. Step 6: Final answer
    x = 23,071.68

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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.