Home / 34,886.81-48,126.89-20,729.63

Finding the Fourth Proportional to 34,886.81, 48,126.89 and 20,729.63

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Solution

The fourth proportional to 34,886.81, 48,126.89 and 20,729.63 is: 28,596.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,886.81 : 48,126.89 = 20,729.63 : x
  2. Step 2: Convert to fraction form
    34,886.81/48,126.89 = 20,729.63/x
  3. Step 3: Cross multiply
    34,886.81x = 48,126.89 × 20,729.63
  4. Step 4: Simplify right side
    34,886.81x = 997,652,519.10
  5. Step 5: Solve for x
    x = 997,652,519.10/34,886.81
  6. Step 6: Final answer
    x = 28,596.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.