Home / 30,529.12-42,122.32-17,951.52

Finding the Fourth Proportional to 30,529.12, 42,122.32 and 17,951.52

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Solution

The fourth proportional to 30,529.12, 42,122.32 and 17,951.52 is: 24,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,529.12 : 42,122.32 = 17,951.52 : x
  2. Step 2: Convert to fraction form
    30,529.12/42,122.32 = 17,951.52/x
  3. Step 3: Cross multiply
    30,529.12x = 42,122.32 × 17,951.52
  4. Step 4: Simplify right side
    30,529.12x = 756,159,669.93
  5. Step 5: Solve for x
    x = 756,159,669.93/30,529.12
  6. Step 6: Final answer
    x = 24,768.47

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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.