Home / 47,723.60-65,848.12-28,860.32

Finding the Fourth Proportional to 47,723.60, 65,848.12 and 28,860.32

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Solution

The fourth proportional to 47,723.60, 65,848.12 and 28,860.32 is: 39,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,723.60 : 65,848.12 = 28,860.32 : x
  2. Step 2: Convert to fraction form
    47,723.60/65,848.12 = 28,860.32/x
  3. Step 3: Cross multiply
    47,723.60x = 65,848.12 × 28,860.32
  4. Step 4: Simplify right side
    47,723.60x = 1,900,397,413.21
  5. Step 5: Solve for x
    x = 1,900,397,413.21/47,723.60
  6. Step 6: Final answer
    x = 39,820.92

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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.