Home / 13,702.80-20,541.84-4,931.52

Finding the Fourth Proportional to 13,702.80, 20,541.84 and 4,931.52

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Solution

The fourth proportional to 13,702.80, 20,541.84 and 4,931.52 is: 7,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.80 : 20,541.84 = 4,931.52 : x
  2. Step 2: Convert to fraction form
    13,702.80/20,541.84 = 4,931.52/x
  3. Step 3: Cross multiply
    13,702.80x = 20,541.84 × 4,931.52
  4. Step 4: Simplify right side
    13,702.80x = 101,302,494.80
  5. Step 5: Solve for x
    x = 101,302,494.80/13,702.80
  6. Step 6: Final answer
    x = 7,392.83

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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.