Home / 35,520.80-53,281.20-19,938.08

Finding the Fourth Proportional to 35,520.80, 53,281.20 and 19,938.08

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Solution

The fourth proportional to 35,520.80, 53,281.20 and 19,938.08 is: 29,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,520.80 : 53,281.20 = 19,938.08 : x
  2. Step 2: Convert to fraction form
    35,520.80/53,281.20 = 19,938.08/x
  3. Step 3: Cross multiply
    35,520.80x = 53,281.20 × 19,938.08
  4. Step 4: Simplify right side
    35,520.80x = 1,062,324,828.10
  5. Step 5: Solve for x
    x = 1,062,324,828.10/35,520.80
  6. Step 6: Final answer
    x = 29,907.12

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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.