Home / 30,756.08-42,434.61-17,322.64

Finding the Fourth Proportional to 30,756.08, 42,434.61 and 17,322.64

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Solution

The fourth proportional to 30,756.08, 42,434.61 and 17,322.64 is: 23,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,756.08 : 42,434.61 = 17,322.64 : x
  2. Step 2: Convert to fraction form
    30,756.08/42,434.61 = 17,322.64/x
  3. Step 3: Cross multiply
    30,756.08x = 42,434.61 × 17,322.64
  4. Step 4: Simplify right side
    30,756.08x = 735,079,472.57
  5. Step 5: Solve for x
    x = 735,079,472.57/30,756.08
  6. Step 6: Final answer
    x = 23,900.30

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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.