Home / 30,156.60-45,224.06-10,429.80

Finding the Fourth Proportional to 30,156.60, 45,224.06 and 10,429.80

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Solution

The fourth proportional to 30,156.60, 45,224.06 and 10,429.80 is: 15,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.60 : 45,224.06 = 10,429.80 : x
  2. Step 2: Convert to fraction form
    30,156.60/45,224.06 = 10,429.80/x
  3. Step 3: Cross multiply
    30,156.60x = 45,224.06 × 10,429.80
  4. Step 4: Simplify right side
    30,156.60x = 471,677,900.99
  5. Step 5: Solve for x
    x = 471,677,900.99/30,156.60
  6. Step 6: Final answer
    x = 15,640.95

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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.