Home / 39,586.75-54,627.63-21,681.38

Finding the Fourth Proportional to 39,586.75, 54,627.63 and 21,681.38

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Solution

The fourth proportional to 39,586.75, 54,627.63 and 21,681.38 is: 29,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,586.75 : 54,627.63 = 21,681.38 : x
  2. Step 2: Convert to fraction form
    39,586.75/54,627.63 = 21,681.38/x
  3. Step 3: Cross multiply
    39,586.75x = 54,627.63 × 21,681.38
  4. Step 4: Simplify right side
    39,586.75x = 1,184,402,131.39
  5. Step 5: Solve for x
    x = 1,184,402,131.39/39,586.75
  6. Step 6: Final answer
    x = 29,919.16

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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.