Home / 35,479.26-53,246.43-13,312.80

Finding the Fourth Proportional to 35,479.26, 53,246.43 and 13,312.80

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Solution

The fourth proportional to 35,479.26, 53,246.43 and 13,312.80 is: 19,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.26 : 53,246.43 = 13,312.80 : x
  2. Step 2: Convert to fraction form
    35,479.26/53,246.43 = 13,312.80/x
  3. Step 3: Cross multiply
    35,479.26x = 53,246.43 × 13,312.80
  4. Step 4: Simplify right side
    35,479.26x = 708,859,073.30
  5. Step 5: Solve for x
    x = 708,859,073.30/35,479.26
  6. Step 6: Final answer
    x = 19,979.53

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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.