Home / 30,474.71-42,053.12-17,043.64

Finding the Fourth Proportional to 30,474.71, 42,053.12 and 17,043.64

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Solution

The fourth proportional to 30,474.71, 42,053.12 and 17,043.64 is: 23,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,474.71 : 42,053.12 = 17,043.64 : x
  2. Step 2: Convert to fraction form
    30,474.71/42,053.12 = 17,043.64/x
  3. Step 3: Cross multiply
    30,474.71x = 42,053.12 × 17,043.64
  4. Step 4: Simplify right side
    30,474.71x = 716,738,325.86
  5. Step 5: Solve for x
    x = 716,738,325.86/30,474.71
  6. Step 6: Final answer
    x = 23,519.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.