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Finding the Fourth Proportional to 39,661.40, 59,492.10 and 13,363.40

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Solution

The fourth proportional to 39,661.40, 59,492.10 and 13,363.40 is: 20,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,661.40 : 59,492.10 = 13,363.40 : x
  2. Step 2: Convert to fraction form
    39,661.40/59,492.10 = 13,363.40/x
  3. Step 3: Cross multiply
    39,661.40x = 59,492.10 × 13,363.40
  4. Step 4: Simplify right side
    39,661.40x = 795,016,729.14
  5. Step 5: Solve for x
    x = 795,016,729.14/39,661.40
  6. Step 6: Final answer
    x = 20,045.10

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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.