Home / 34,541.12-47,667.28-20,393.96

Finding the Fourth Proportional to 34,541.12, 47,667.28 and 20,393.96

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Solution

The fourth proportional to 34,541.12, 47,667.28 and 20,393.96 is: 28,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,541.12 : 47,667.28 = 20,393.96 : x
  2. Step 2: Convert to fraction form
    34,541.12/47,667.28 = 20,393.96/x
  3. Step 3: Cross multiply
    34,541.12x = 47,667.28 × 20,393.96
  4. Step 4: Simplify right side
    34,541.12x = 972,124,601.63
  5. Step 5: Solve for x
    x = 972,124,601.63/34,541.12
  6. Step 6: Final answer
    x = 28,143.98

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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.