Home / 31,459.13-43,413.74-18,031.17

Finding the Fourth Proportional to 31,459.13, 43,413.74 and 18,031.17

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Solution

The fourth proportional to 31,459.13, 43,413.74 and 18,031.17 is: 24,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.13 : 43,413.74 = 18,031.17 : x
  2. Step 2: Convert to fraction form
    31,459.13/43,413.74 = 18,031.17/x
  3. Step 3: Cross multiply
    31,459.13x = 43,413.74 × 18,031.17
  4. Step 4: Simplify right side
    31,459.13x = 782,800,436.12
  5. Step 5: Solve for x
    x = 782,800,436.12/31,459.13
  6. Step 6: Final answer
    x = 24,883.10

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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.