Home / 39,343.02-54,292.68-21,438.18

Finding the Fourth Proportional to 39,343.02, 54,292.68 and 21,438.18

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Solution

The fourth proportional to 39,343.02, 54,292.68 and 21,438.18 is: 29,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343.02 : 54,292.68 = 21,438.18 : x
  2. Step 2: Convert to fraction form
    39,343.02/54,292.68 = 21,438.18/x
  3. Step 3: Cross multiply
    39,343.02x = 54,292.68 × 21,438.18
  4. Step 4: Simplify right side
    39,343.02x = 1,163,936,246.52
  5. Step 5: Solve for x
    x = 1,163,936,246.52/39,343.02
  6. Step 6: Final answer
    x = 29,584.31

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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.