Home / 39,590.06-54,631.94-21,681.50

Finding the Fourth Proportional to 39,590.06, 54,631.94 and 21,681.50

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Solution

The fourth proportional to 39,590.06, 54,631.94 and 21,681.50 is: 29,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,590.06 : 54,631.94 = 21,681.50 : x
  2. Step 2: Convert to fraction form
    39,590.06/54,631.94 = 21,681.50/x
  3. Step 3: Cross multiply
    39,590.06x = 54,631.94 × 21,681.50
  4. Step 4: Simplify right side
    39,590.06x = 1,184,502,407.11
  5. Step 5: Solve for x
    x = 1,184,502,407.11/39,590.06
  6. Step 6: Final answer
    x = 29,919.19

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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.