Home / 30,031.60-45,099.32-18,413.04

Finding the Fourth Proportional to 30,031.60, 45,099.32 and 18,413.04

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Solution

The fourth proportional to 30,031.60, 45,099.32 and 18,413.04 is: 27,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.60 : 45,099.32 = 18,413.04 : x
  2. Step 2: Convert to fraction form
    30,031.60/45,099.32 = 18,413.04/x
  3. Step 3: Cross multiply
    30,031.60x = 45,099.32 × 18,413.04
  4. Step 4: Simplify right side
    30,031.60x = 830,415,583.13
  5. Step 5: Solve for x
    x = 830,415,583.13/30,031.60
  6. Step 6: Final answer
    x = 27,651.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.