Home / 30,938.74-46,399.61-15,135.64

Finding the Fourth Proportional to 30,938.74, 46,399.61 and 15,135.64

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Solution

The fourth proportional to 30,938.74, 46,399.61 and 15,135.64 is: 22,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,938.74 : 46,399.61 = 15,135.64 : x
  2. Step 2: Convert to fraction form
    30,938.74/46,399.61 = 15,135.64/x
  3. Step 3: Cross multiply
    30,938.74x = 46,399.61 × 15,135.64
  4. Step 4: Simplify right side
    30,938.74x = 702,287,717.42
  5. Step 5: Solve for x
    x = 702,287,717.42/30,938.74
  6. Step 6: Final answer
    x = 22,699.30

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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.