Home / 20,477.65-30,716.48-5,686.57

Finding the Fourth Proportional to 20,477.65, 30,716.48 and 5,686.57

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Solution

The fourth proportional to 20,477.65, 30,716.48 and 5,686.57 is: 8,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.65 : 30,716.48 = 5,686.57 : x
  2. Step 2: Convert to fraction form
    20,477.65/30,716.48 = 5,686.57/x
  3. Step 3: Cross multiply
    20,477.65x = 30,716.48 × 5,686.57
  4. Step 4: Simplify right side
    20,477.65x = 174,671,413.67
  5. Step 5: Solve for x
    x = 174,671,413.67/20,477.65
  6. Step 6: Final answer
    x = 8,529.86

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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.