Home / 31,720.16-47,583.12-12,995.84

Finding the Fourth Proportional to 31,720.16, 47,583.12 and 12,995.84

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Solution

The fourth proportional to 31,720.16, 47,583.12 and 12,995.84 is: 19,494.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.16 : 47,583.12 = 12,995.84 : x
  2. Step 2: Convert to fraction form
    31,720.16/47,583.12 = 12,995.84/x
  3. Step 3: Cross multiply
    31,720.16x = 47,583.12 × 12,995.84
  4. Step 4: Simplify right side
    31,720.16x = 618,382,614.22
  5. Step 5: Solve for x
    x = 618,382,614.22/31,720.16
  6. Step 6: Final answer
    x = 19,494.94

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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.