Home / 31,145.80-46,733.28-13,613.35

Finding the Fourth Proportional to 31,145.80, 46,733.28 and 13,613.35

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Solution

The fourth proportional to 31,145.80, 46,733.28 and 13,613.35 is: 20,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,145.80 : 46,733.28 = 13,613.35 : x
  2. Step 2: Convert to fraction form
    31,145.80/46,733.28 = 13,613.35/x
  3. Step 3: Cross multiply
    31,145.80x = 46,733.28 × 13,613.35
  4. Step 4: Simplify right side
    31,145.80x = 636,196,497.29
  5. Step 5: Solve for x
    x = 636,196,497.29/31,145.80
  6. Step 6: Final answer
    x = 20,426.40

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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.