Home / 18,413.81-25,411.60-10,030.85

Finding the Fourth Proportional to 18,413.81, 25,411.60 and 10,030.85

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Solution

The fourth proportional to 18,413.81, 25,411.60 and 10,030.85 is: 13,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.81 : 25,411.60 = 10,030.85 : x
  2. Step 2: Convert to fraction form
    18,413.81/25,411.60 = 10,030.85/x
  3. Step 3: Cross multiply
    18,413.81x = 25,411.60 × 10,030.85
  4. Step 4: Simplify right side
    18,413.81x = 254,899,947.86
  5. Step 5: Solve for x
    x = 254,899,947.86/18,413.81
  6. Step 6: Final answer
    x = 13,842.87

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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.