Home / 17,428.81-26,143.30-4,281.18

Finding the Fourth Proportional to 17,428.81, 26,143.30 and 4,281.18

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Solution

The fourth proportional to 17,428.81, 26,143.30 and 4,281.18 is: 6,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,428.81 : 26,143.30 = 4,281.18 : x
  2. Step 2: Convert to fraction form
    17,428.81/26,143.30 = 4,281.18/x
  3. Step 3: Cross multiply
    17,428.81x = 26,143.30 × 4,281.18
  4. Step 4: Simplify right side
    17,428.81x = 111,924,276.48
  5. Step 5: Solve for x
    x = 111,924,276.48/17,428.81
  6. Step 6: Final answer
    x = 6,421.80

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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.