Home / 20,595.38-28,413.50-13,433.63

Finding the Fourth Proportional to 20,595.38, 28,413.50 and 13,433.63

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Solution

The fourth proportional to 20,595.38, 28,413.50 and 13,433.63 is: 18,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.38 : 28,413.50 = 13,433.63 : x
  2. Step 2: Convert to fraction form
    20,595.38/28,413.50 = 13,433.63/x
  3. Step 3: Cross multiply
    20,595.38x = 28,413.50 × 13,433.63
  4. Step 4: Simplify right side
    20,595.38x = 381,696,236.77
  5. Step 5: Solve for x
    x = 381,696,236.77/20,595.38
  6. Step 6: Final answer
    x = 18,533.10

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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.