Home / 19,307.40-28,941.36-10,969.80

Finding the Fourth Proportional to 19,307.40, 28,941.36 and 10,969.80

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Solution

The fourth proportional to 19,307.40, 28,941.36 and 10,969.80 is: 16,443.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.40 : 28,941.36 = 10,969.80 : x
  2. Step 2: Convert to fraction form
    19,307.40/28,941.36 = 10,969.80/x
  3. Step 3: Cross multiply
    19,307.40x = 28,941.36 × 10,969.80
  4. Step 4: Simplify right side
    19,307.40x = 317,480,930.93
  5. Step 5: Solve for x
    x = 317,480,930.93/19,307.40
  6. Step 6: Final answer
    x = 16,443.48

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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.