Home / 30,154.30-45,235.58-10,427.56

Finding the Fourth Proportional to 30,154.30, 45,235.58 and 10,427.56

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Solution

The fourth proportional to 30,154.30, 45,235.58 and 10,427.56 is: 15,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.30 : 45,235.58 = 10,427.56 : x
  2. Step 2: Convert to fraction form
    30,154.30/45,235.58 = 10,427.56/x
  3. Step 3: Cross multiply
    30,154.30x = 45,235.58 × 10,427.56
  4. Step 4: Simplify right side
    30,154.30x = 471,696,724.58
  5. Step 5: Solve for x
    x = 471,696,724.58/30,154.30
  6. Step 6: Final answer
    x = 15,642.77

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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.