Home / 30,861.57-42,583.95-17,429.76

Finding the Fourth Proportional to 30,861.57, 42,583.95 and 17,429.76

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Solution

The fourth proportional to 30,861.57, 42,583.95 and 17,429.76 is: 24,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.57 : 42,583.95 = 17,429.76 : x
  2. Step 2: Convert to fraction form
    30,861.57/42,583.95 = 17,429.76/x
  3. Step 3: Cross multiply
    30,861.57x = 42,583.95 × 17,429.76
  4. Step 4: Simplify right side
    30,861.57x = 742,228,028.35
  5. Step 5: Solve for x
    x = 742,228,028.35/30,861.57
  6. Step 6: Final answer
    x = 24,050.24

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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.