Home / 28,974.60-39,984.26-17,038.71

Finding the Fourth Proportional to 28,974.60, 39,984.26 and 17,038.71

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Solution

The fourth proportional to 28,974.60, 39,984.26 and 17,038.71 is: 23,513.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.60 : 39,984.26 = 17,038.71 : x
  2. Step 2: Convert to fraction form
    28,974.60/39,984.26 = 17,038.71/x
  3. Step 3: Cross multiply
    28,974.60x = 39,984.26 × 17,038.71
  4. Step 4: Simplify right side
    28,974.60x = 681,280,125.51
  5. Step 5: Solve for x
    x = 681,280,125.51/28,974.60
  6. Step 6: Final answer
    x = 23,513.01

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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.