Home / 43,291.70-64,925.40-13,718.60

Finding the Fourth Proportional to 43,291.70, 64,925.40 and 13,718.60

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Solution

The fourth proportional to 43,291.70, 64,925.40 and 13,718.60 is: 20,574.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,291.70 : 64,925.40 = 13,718.60 : x
  2. Step 2: Convert to fraction form
    43,291.70/64,925.40 = 13,718.60/x
  3. Step 3: Cross multiply
    43,291.70x = 64,925.40 × 13,718.60
  4. Step 4: Simplify right side
    43,291.70x = 890,685,592.44
  5. Step 5: Solve for x
    x = 890,685,592.44/43,291.70
  6. Step 6: Final answer
    x = 20,574.05

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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.