Home / 28,957.10-39,960.14-17,017.70

Finding the Fourth Proportional to 28,957.10, 39,960.14 and 17,017.70

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Solution

The fourth proportional to 28,957.10, 39,960.14 and 17,017.70 is: 23,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.10 : 39,960.14 = 17,017.70 : x
  2. Step 2: Convert to fraction form
    28,957.10/39,960.14 = 17,017.70/x
  3. Step 3: Cross multiply
    28,957.10x = 39,960.14 × 17,017.70
  4. Step 4: Simplify right side
    28,957.10x = 680,029,389.59
  5. Step 5: Solve for x
    x = 680,029,389.59/28,957.10
  6. Step 6: Final answer
    x = 23,484.03

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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.