Home / 23,230.20-34,931.70-19,428.60

Finding the Fourth Proportional to 23,230.20, 34,931.70 and 19,428.60

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Solution

The fourth proportional to 23,230.20, 34,931.70 and 19,428.60 is: 29,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,230.20 : 34,931.70 = 19,428.60 : x
  2. Step 2: Convert to fraction form
    23,230.20/34,931.70 = 19,428.60/x
  3. Step 3: Cross multiply
    23,230.20x = 34,931.70 × 19,428.60
  4. Step 4: Simplify right side
    23,230.20x = 678,674,026.62
  5. Step 5: Solve for x
    x = 678,674,026.62/23,230.20
  6. Step 6: Final answer
    x = 29,215.16

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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.