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Finding the Fourth Proportional to 40,245.40, 60,368.08 and 13,950.12

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Solution

The fourth proportional to 40,245.40, 60,368.08 and 13,950.12 is: 20,925.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,245.40 : 60,368.08 = 13,950.12 : x
  2. Step 2: Convert to fraction form
    40,245.40/60,368.08 = 13,950.12/x
  3. Step 3: Cross multiply
    40,245.40x = 60,368.08 × 13,950.12
  4. Step 4: Simplify right side
    40,245.40x = 842,141,960.17
  5. Step 5: Solve for x
    x = 842,141,960.17/40,245.40
  6. Step 6: Final answer
    x = 20,925.17

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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.