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Finding the Fourth Proportional to 39,946, 59,838.79 and 19,895.08

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Solution

The fourth proportional to 39,946, 59,838.79 and 19,895.08 is: 29,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,946 : 59,838.79 = 19,895.08 : x
  2. Step 2: Convert to fraction form
    39,946/59,838.79 = 19,895.08/x
  3. Step 3: Cross multiply
    39,946x = 59,838.79 × 19,895.08
  4. Step 4: Simplify right side
    39,946x = 1,190,497,514.15
  5. Step 5: Solve for x
    x = 1,190,497,514.15/39,946
  6. Step 6: Final answer
    x = 29,802.67

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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.