Home / 30,209.61-41,704.41-18,885.40

Finding the Fourth Proportional to 30,209.61, 41,704.41 and 18,885.40

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Solution

The fourth proportional to 30,209.61, 41,704.41 and 18,885.40 is: 26,071.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.61 : 41,704.41 = 18,885.40 : x
  2. Step 2: Convert to fraction form
    30,209.61/41,704.41 = 18,885.40/x
  3. Step 3: Cross multiply
    30,209.61x = 41,704.41 × 18,885.40
  4. Step 4: Simplify right side
    30,209.61x = 787,604,464.61
  5. Step 5: Solve for x
    x = 787,604,464.61/30,209.61
  6. Step 6: Final answer
    x = 26,071.32

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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.