Home / 28,913.40-43,283.70-17,220.60

Finding the Fourth Proportional to 28,913.40, 43,283.70 and 17,220.60

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Solution

The fourth proportional to 28,913.40, 43,283.70 and 17,220.60 is: 25,779.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.40 : 43,283.70 = 17,220.60 : x
  2. Step 2: Convert to fraction form
    28,913.40/43,283.70 = 17,220.60/x
  3. Step 3: Cross multiply
    28,913.40x = 43,283.70 × 17,220.60
  4. Step 4: Simplify right side
    28,913.40x = 745,371,284.22
  5. Step 5: Solve for x
    x = 745,371,284.22/28,913.40
  6. Step 6: Final answer
    x = 25,779.44

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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.