Home / 19,538.55-29,307.60-4,747.46

Finding the Fourth Proportional to 19,538.55, 29,307.60 and 4,747.46

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Solution

The fourth proportional to 19,538.55, 29,307.60 and 4,747.46 is: 7,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.55 : 29,307.60 = 4,747.46 : x
  2. Step 2: Convert to fraction form
    19,538.55/29,307.60 = 4,747.46/x
  3. Step 3: Cross multiply
    19,538.55x = 29,307.60 × 4,747.46
  4. Step 4: Simplify right side
    19,538.55x = 139,136,512.16
  5. Step 5: Solve for x
    x = 139,136,512.16/19,538.55
  6. Step 6: Final answer
    x = 7,121.13

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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.