Home / 31,274.70-46,915.02-8,785.32

Finding the Fourth Proportional to 31,274.70, 46,915.02 and 8,785.32

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Solution

The fourth proportional to 31,274.70, 46,915.02 and 8,785.32 is: 13,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,274.70 : 46,915.02 = 8,785.32 : x
  2. Step 2: Convert to fraction form
    31,274.70/46,915.02 = 8,785.32/x
  3. Step 3: Cross multiply
    31,274.70x = 46,915.02 × 8,785.32
  4. Step 4: Simplify right side
    31,274.70x = 412,163,463.51
  5. Step 5: Solve for x
    x = 412,163,463.51/31,274.70
  6. Step 6: Final answer
    x = 13,178.81

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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.