Home / 31,731.40-47,587.83-10,669.06

Finding the Fourth Proportional to 31,731.40, 47,587.83 and 10,669.06

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Solution

The fourth proportional to 31,731.40, 47,587.83 and 10,669.06 is: 16,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.40 : 47,587.83 = 10,669.06 : x
  2. Step 2: Convert to fraction form
    31,731.40/47,587.83 = 10,669.06/x
  3. Step 3: Cross multiply
    31,731.40x = 47,587.83 × 10,669.06
  4. Step 4: Simplify right side
    31,731.40x = 507,717,413.54
  5. Step 5: Solve for x
    x = 507,717,413.54/31,731.40
  6. Step 6: Final answer
    x = 16,000.47

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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.