Home / 30,711.52-42,378.63-17,282.54

Finding the Fourth Proportional to 30,711.52, 42,378.63 and 17,282.54

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Solution

The fourth proportional to 30,711.52, 42,378.63 and 17,282.54 is: 23,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711.52 : 42,378.63 = 17,282.54 : x
  2. Step 2: Convert to fraction form
    30,711.52/42,378.63 = 17,282.54/x
  3. Step 3: Cross multiply
    30,711.52x = 42,378.63 × 17,282.54
  4. Step 4: Simplify right side
    30,711.52x = 732,410,368.12
  5. Step 5: Solve for x
    x = 732,410,368.12/30,711.52
  6. Step 6: Final answer
    x = 23,848.07

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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.