Home / 39,627.04-54,685.40-21,722.68

Finding the Fourth Proportional to 39,627.04, 54,685.40 and 21,722.68

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Solution

The fourth proportional to 39,627.04, 54,685.40 and 21,722.68 is: 29,977.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,627.04 : 54,685.40 = 21,722.68 : x
  2. Step 2: Convert to fraction form
    39,627.04/54,685.40 = 21,722.68/x
  3. Step 3: Cross multiply
    39,627.04x = 54,685.40 × 21,722.68
  4. Step 4: Simplify right side
    39,627.04x = 1,187,913,444.87
  5. Step 5: Solve for x
    x = 1,187,913,444.87/39,627.04
  6. Step 6: Final answer
    x = 29,977.34

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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.