Home / 39,369.03-54,328.53-21,464.19

Finding the Fourth Proportional to 39,369.03, 54,328.53 and 21,464.19

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Solution

The fourth proportional to 39,369.03, 54,328.53 and 21,464.19 is: 29,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,369.03 : 54,328.53 = 21,464.19 : x
  2. Step 2: Convert to fraction form
    39,369.03/54,328.53 = 21,464.19/x
  3. Step 3: Cross multiply
    39,369.03x = 54,328.53 × 21,464.19
  4. Step 4: Simplify right side
    39,369.03x = 1,166,117,890.34
  5. Step 5: Solve for x
    x = 1,166,117,890.34/39,369.03
  6. Step 6: Final answer
    x = 29,620.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.