Home / 39,586.04-54,627.72-21,681.80

Finding the Fourth Proportional to 39,586.04, 54,627.72 and 21,681.80

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Solution

The fourth proportional to 39,586.04, 54,627.72 and 21,681.80 is: 29,920.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,586.04 : 54,627.72 = 21,681.80 : x
  2. Step 2: Convert to fraction form
    39,586.04/54,627.72 = 21,681.80/x
  3. Step 3: Cross multiply
    39,586.04x = 54,627.72 × 21,681.80
  4. Step 4: Simplify right side
    39,586.04x = 1,184,427,299.50
  5. Step 5: Solve for x
    x = 1,184,427,299.50/39,586.04
  6. Step 6: Final answer
    x = 29,920.33

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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.