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Finding the Fourth Proportional to 39,246.40, 58,802.40 and 18,427.20

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Solution

The fourth proportional to 39,246.40, 58,802.40 and 18,427.20 is: 27,609.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,246.40 : 58,802.40 = 18,427.20 : x
  2. Step 2: Convert to fraction form
    39,246.40/58,802.40 = 18,427.20/x
  3. Step 3: Cross multiply
    39,246.40x = 58,802.40 × 18,427.20
  4. Step 4: Simplify right side
    39,246.40x = 1,083,563,585.28
  5. Step 5: Solve for x
    x = 1,083,563,585.28/39,246.40
  6. Step 6: Final answer
    x = 27,609.25

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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.