Home / 19,355.19-28,901.73-15,361.65

Finding the Fourth Proportional to 19,355.19, 28,901.73 and 15,361.65

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Solution

The fourth proportional to 19,355.19, 28,901.73 and 15,361.65 is: 22,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.19 : 28,901.73 = 15,361.65 : x
  2. Step 2: Convert to fraction form
    19,355.19/28,901.73 = 15,361.65/x
  3. Step 3: Cross multiply
    19,355.19x = 28,901.73 × 15,361.65
  4. Step 4: Simplify right side
    19,355.19x = 443,978,260.65
  5. Step 5: Solve for x
    x = 443,978,260.65/19,355.19
  6. Step 6: Final answer
    x = 22,938.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.