Home / 39,588.40-54,631.98-21,684.52

Finding the Fourth Proportional to 39,588.40, 54,631.98 and 21,684.52

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Solution

The fourth proportional to 39,588.40, 54,631.98 and 21,684.52 is: 29,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,588.40 : 54,631.98 = 21,684.52 : x
  2. Step 2: Convert to fraction form
    39,588.40/54,631.98 = 21,684.52/x
  3. Step 3: Cross multiply
    39,588.40x = 54,631.98 × 21,684.52
  4. Step 4: Simplify right side
    39,588.40x = 1,184,668,262.95
  5. Step 5: Solve for x
    x = 1,184,668,262.95/39,588.40
  6. Step 6: Final answer
    x = 29,924.63

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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.