Home / 39,413.12-59,129.92-11,711.36

Finding the Fourth Proportional to 39,413.12, 59,129.92 and 11,711.36

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Solution

The fourth proportional to 39,413.12, 59,129.92 and 11,711.36 is: 17,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,413.12 : 59,129.92 = 11,711.36 : x
  2. Step 2: Convert to fraction form
    39,413.12/59,129.92 = 11,711.36/x
  3. Step 3: Cross multiply
    39,413.12x = 59,129.92 × 11,711.36
  4. Step 4: Simplify right side
    39,413.12x = 692,491,779.89
  5. Step 5: Solve for x
    x = 692,491,779.89/39,413.12
  6. Step 6: Final answer
    x = 17,570.08

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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.