Home / 39,691.18-59,495.36-13,386.88

Finding the Fourth Proportional to 39,691.18, 59,495.36 and 13,386.88

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Solution

The fourth proportional to 39,691.18, 59,495.36 and 13,386.88 is: 20,066.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,691.18 : 59,495.36 = 13,386.88 : x
  2. Step 2: Convert to fraction form
    39,691.18/59,495.36 = 13,386.88/x
  3. Step 3: Cross multiply
    39,691.18x = 59,495.36 × 13,386.88
  4. Step 4: Simplify right side
    39,691.18x = 796,457,244.88
  5. Step 5: Solve for x
    x = 796,457,244.88/39,691.18
  6. Step 6: Final answer
    x = 20,066.35

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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.