Home / 28,705.60-43,009.80-23,748.40

Finding the Fourth Proportional to 28,705.60, 43,009.80 and 23,748.40

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Solution

The fourth proportional to 28,705.60, 43,009.80 and 23,748.40 is: 35,582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.60 : 43,009.80 = 23,748.40 : x
  2. Step 2: Convert to fraction form
    28,705.60/43,009.80 = 23,748.40/x
  3. Step 3: Cross multiply
    28,705.60x = 43,009.80 × 23,748.40
  4. Step 4: Simplify right side
    28,705.60x = 1,021,413,934.32
  5. Step 5: Solve for x
    x = 1,021,413,934.32/28,705.60
  6. Step 6: Final answer
    x = 35,582.39

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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.