Home / 35,143.98-52,736.76-12,972.80

Finding the Fourth Proportional to 35,143.98, 52,736.76 and 12,972.80

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Solution

The fourth proportional to 35,143.98, 52,736.76 and 12,972.80 is: 19,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,143.98 : 52,736.76 = 12,972.80 : x
  2. Step 2: Convert to fraction form
    35,143.98/52,736.76 = 12,972.80/x
  3. Step 3: Cross multiply
    35,143.98x = 52,736.76 × 12,972.80
  4. Step 4: Simplify right side
    35,143.98x = 684,143,440.13
  5. Step 5: Solve for x
    x = 684,143,440.13/35,143.98
  6. Step 6: Final answer
    x = 19,466.87

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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.