Home / 30,156.84-45,250.25-13,528.62

Finding the Fourth Proportional to 30,156.84, 45,250.25 and 13,528.62

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Solution

The fourth proportional to 30,156.84, 45,250.25 and 13,528.62 is: 20,299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.84 : 45,250.25 = 13,528.62 : x
  2. Step 2: Convert to fraction form
    30,156.84/45,250.25 = 13,528.62/x
  3. Step 3: Cross multiply
    30,156.84x = 45,250.25 × 13,528.62
  4. Step 4: Simplify right side
    30,156.84x = 612,173,369.51
  5. Step 5: Solve for x
    x = 612,173,369.51/30,156.84
  6. Step 6: Final answer
    x = 20,299.65

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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.