Home / 29,285.21-40,413.09-15,856.36

Finding the Fourth Proportional to 29,285.21, 40,413.09 and 15,856.36

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Solution

The fourth proportional to 29,285.21, 40,413.09 and 15,856.36 is: 21,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,285.21 : 40,413.09 = 15,856.36 : x
  2. Step 2: Convert to fraction form
    29,285.21/40,413.09 = 15,856.36/x
  3. Step 3: Cross multiply
    29,285.21x = 40,413.09 × 15,856.36
  4. Step 4: Simplify right side
    29,285.21x = 640,804,462.18
  5. Step 5: Solve for x
    x = 640,804,462.18/29,285.21
  6. Step 6: Final answer
    x = 21,881.50

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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.