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Finding the Fourth Proportional to 35,166.98, 52,744.74 and 12,990.80

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Solution

The fourth proportional to 35,166.98, 52,744.74 and 12,990.80 is: 19,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,166.98 : 52,744.74 = 12,990.80 : x
  2. Step 2: Convert to fraction form
    35,166.98/52,744.74 = 12,990.80/x
  3. Step 3: Cross multiply
    35,166.98x = 52,744.74 × 12,990.80
  4. Step 4: Simplify right side
    35,166.98x = 685,196,368.39
  5. Step 5: Solve for x
    x = 685,196,368.39/35,166.98
  6. Step 6: Final answer
    x = 19,484.08

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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.