Home / 39,448.76-54,439.01-21,543.77

Finding the Fourth Proportional to 39,448.76, 54,439.01 and 21,543.77

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Solution

The fourth proportional to 39,448.76, 54,439.01 and 21,543.77 is: 29,730.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,448.76 : 54,439.01 = 21,543.77 : x
  2. Step 2: Convert to fraction form
    39,448.76/54,439.01 = 21,543.77/x
  3. Step 3: Cross multiply
    39,448.76x = 54,439.01 × 21,543.77
  4. Step 4: Simplify right side
    39,448.76x = 1,172,821,130.55
  5. Step 5: Solve for x
    x = 1,172,821,130.55/39,448.76
  6. Step 6: Final answer
    x = 29,730.24

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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.