Home / 30,938.40-42,693.84-17,509.94

Finding the Fourth Proportional to 30,938.40, 42,693.84 and 17,509.94

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Solution

The fourth proportional to 30,938.40, 42,693.84 and 17,509.94 is: 24,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,938.40 : 42,693.84 = 17,509.94 : x
  2. Step 2: Convert to fraction form
    30,938.40/42,693.84 = 17,509.94/x
  3. Step 3: Cross multiply
    30,938.40x = 42,693.84 × 17,509.94
  4. Step 4: Simplify right side
    30,938.40x = 747,566,523.40
  5. Step 5: Solve for x
    x = 747,566,523.40/30,938.40
  6. Step 6: Final answer
    x = 24,163.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.