Home / 39,448.68-54,437.58-21,543

Finding the Fourth Proportional to 39,448.68, 54,437.58 and 21,543

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Solution

The fourth proportional to 39,448.68, 54,437.58 and 21,543 is: 29,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,448.68 : 54,437.58 = 21,543 : x
  2. Step 2: Convert to fraction form
    39,448.68/54,437.58 = 21,543/x
  3. Step 3: Cross multiply
    39,448.68x = 54,437.58 × 21,543
  4. Step 4: Simplify right side
    39,448.68x = 1,172,748,785.94
  5. Step 5: Solve for x
    x = 1,172,748,785.94/39,448.68
  6. Step 6: Final answer
    x = 29,728.47

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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.