Home / 23,878.30-35,855.70-18,988.60

Finding the Fourth Proportional to 23,878.30, 35,855.70 and 18,988.60

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Solution

The fourth proportional to 23,878.30, 35,855.70 and 18,988.60 is: 28,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,878.30 : 35,855.70 = 18,988.60 : x
  2. Step 2: Convert to fraction form
    23,878.30/35,855.70 = 18,988.60/x
  3. Step 3: Cross multiply
    23,878.30x = 35,855.70 × 18,988.60
  4. Step 4: Simplify right side
    23,878.30x = 680,849,545.02
  5. Step 5: Solve for x
    x = 680,849,545.02/23,878.30
  6. Step 6: Final answer
    x = 28,513.32

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1.5x scale

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.