Home / 15,900.30-23,821.65-12,962.70

Finding the Fourth Proportional to 15,900.30, 23,821.65 and 12,962.70

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Solution

The fourth proportional to 15,900.30, 23,821.65 and 12,962.70 is: 19,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.30 : 23,821.65 = 12,962.70 : x
  2. Step 2: Convert to fraction form
    15,900.30/23,821.65 = 12,962.70/x
  3. Step 3: Cross multiply
    15,900.30x = 23,821.65 × 12,962.70
  4. Step 4: Simplify right side
    15,900.30x = 308,792,902.46
  5. Step 5: Solve for x
    x = 308,792,902.46/15,900.30
  6. Step 6: Final answer
    x = 19,420.57

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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.