Home / 31,940.16-47,904.76-8,561.13

Finding the Fourth Proportional to 31,940.16, 47,904.76 and 8,561.13

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Solution

The fourth proportional to 31,940.16, 47,904.76 and 8,561.13 is: 12,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940.16 : 47,904.76 = 8,561.13 : x
  2. Step 2: Convert to fraction form
    31,940.16/47,904.76 = 8,561.13/x
  3. Step 3: Cross multiply
    31,940.16x = 47,904.76 × 8,561.13
  4. Step 4: Simplify right side
    31,940.16x = 410,118,877.98
  5. Step 5: Solve for x
    x = 410,118,877.98/31,940.16
  6. Step 6: Final answer
    x = 12,840.23

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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.