Home / 39,212.47-54,113.43-21,307.46

Finding the Fourth Proportional to 39,212.47, 54,113.43 and 21,307.46

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Solution

The fourth proportional to 39,212.47, 54,113.43 and 21,307.46 is: 29,404.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,212.47 : 54,113.43 = 21,307.46 : x
  2. Step 2: Convert to fraction form
    39,212.47/54,113.43 = 21,307.46/x
  3. Step 3: Cross multiply
    39,212.47x = 54,113.43 × 21,307.46
  4. Step 4: Simplify right side
    39,212.47x = 1,153,019,554.52
  5. Step 5: Solve for x
    x = 1,153,019,554.52/39,212.47
  6. Step 6: Final answer
    x = 29,404.41

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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.