Home / 30,715.36-46,017.10-21,335.56

Finding the Fourth Proportional to 30,715.36, 46,017.10 and 21,335.56

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Solution

The fourth proportional to 30,715.36, 46,017.10 and 21,335.56 is: 31,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715.36 : 46,017.10 = 21,335.56 : x
  2. Step 2: Convert to fraction form
    30,715.36/46,017.10 = 21,335.56/x
  3. Step 3: Cross multiply
    30,715.36x = 46,017.10 × 21,335.56
  4. Step 4: Simplify right side
    30,715.36x = 981,800,598.08
  5. Step 5: Solve for x
    x = 981,800,598.08/30,715.36
  6. Step 6: Final answer
    x = 31,964.48

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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.