Home / 31,106.32-46,633.92-12,378.28

Finding the Fourth Proportional to 31,106.32, 46,633.92 and 12,378.28

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Solution

The fourth proportional to 31,106.32, 46,633.92 and 12,378.28 is: 18,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106.32 : 46,633.92 = 12,378.28 : x
  2. Step 2: Convert to fraction form
    31,106.32/46,633.92 = 12,378.28/x
  3. Step 3: Cross multiply
    31,106.32x = 46,633.92 × 12,378.28
  4. Step 4: Simplify right side
    31,106.32x = 577,247,719.26
  5. Step 5: Solve for x
    x = 577,247,719.26/31,106.32
  6. Step 6: Final answer
    x = 18,557.25

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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.