Home / 28,974.03-39,985.12-17,038.47

Finding the Fourth Proportional to 28,974.03, 39,985.12 and 17,038.47

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Solution

The fourth proportional to 28,974.03, 39,985.12 and 17,038.47 is: 23,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.03 : 39,985.12 = 17,038.47 : x
  2. Step 2: Convert to fraction form
    28,974.03/39,985.12 = 17,038.47/x
  3. Step 3: Cross multiply
    28,974.03x = 39,985.12 × 17,038.47
  4. Step 4: Simplify right side
    28,974.03x = 681,285,267.57
  5. Step 5: Solve for x
    x = 681,285,267.57/28,974.03
  6. Step 6: Final answer
    x = 23,513.65

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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.