Home / 39,517.74-54,554.31-30,544.98

Finding the Fourth Proportional to 39,517.74, 54,554.31 and 30,544.98

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Solution

The fourth proportional to 39,517.74, 54,554.31 and 30,544.98 is: 42,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.74 : 54,554.31 = 30,544.98 : x
  2. Step 2: Convert to fraction form
    39,517.74/54,554.31 = 30,544.98/x
  3. Step 3: Cross multiply
    39,517.74x = 54,554.31 × 30,544.98
  4. Step 4: Simplify right side
    39,517.74x = 1,666,360,307.86
  5. Step 5: Solve for x
    x = 1,666,360,307.86/39,517.74
  6. Step 6: Final answer
    x = 42,167.40

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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.