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Finding the Fourth Proportional to 36,372, 54,570.80 and 17,916.96

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Solution

The fourth proportional to 36,372, 54,570.80 and 17,916.96 is: 26,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,372 : 54,570.80 = 17,916.96 : x
  2. Step 2: Convert to fraction form
    36,372/54,570.80 = 17,916.96/x
  3. Step 3: Cross multiply
    36,372x = 54,570.80 × 17,916.96
  4. Step 4: Simplify right side
    36,372x = 977,742,840.77
  5. Step 5: Solve for x
    x = 977,742,840.77/36,372
  6. Step 6: Final answer
    x = 26,881.75

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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.