Home / 28,780.60-43,235.70-20,032.60

Finding the Fourth Proportional to 28,780.60, 43,235.70 and 20,032.60

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Solution

The fourth proportional to 28,780.60, 43,235.70 and 20,032.60 is: 30,094.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.60 : 43,235.70 = 20,032.60 : x
  2. Step 2: Convert to fraction form
    28,780.60/43,235.70 = 20,032.60/x
  3. Step 3: Cross multiply
    28,780.60x = 43,235.70 × 20,032.60
  4. Step 4: Simplify right side
    28,780.60x = 866,123,483.82
  5. Step 5: Solve for x
    x = 866,123,483.82/28,780.60
  6. Step 6: Final answer
    x = 30,094.00

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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.