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Finding the Fourth Proportional to 34,663.70, 52,007.70 and 12,477.80

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Solution

The fourth proportional to 34,663.70, 52,007.70 and 12,477.80 is: 18,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,663.70 : 52,007.70 = 12,477.80 : x
  2. Step 2: Convert to fraction form
    34,663.70/52,007.70 = 12,477.80/x
  3. Step 3: Cross multiply
    34,663.70x = 52,007.70 × 12,477.80
  4. Step 4: Simplify right side
    34,663.70x = 648,941,679.06
  5. Step 5: Solve for x
    x = 648,941,679.06/34,663.70
  6. Step 6: Final answer
    x = 18,721.07

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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.