Home / 39,417.03-54,395.28-21,511.98

Finding the Fourth Proportional to 39,417.03, 54,395.28 and 21,511.98

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Solution

The fourth proportional to 39,417.03, 54,395.28 and 21,511.98 is: 29,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,417.03 : 54,395.28 = 21,511.98 : x
  2. Step 2: Convert to fraction form
    39,417.03/54,395.28 = 21,511.98/x
  3. Step 3: Cross multiply
    39,417.03x = 54,395.28 × 21,511.98
  4. Step 4: Simplify right side
    39,417.03x = 1,170,150,175.45
  5. Step 5: Solve for x
    x = 1,170,150,175.45/39,417.03
  6. Step 6: Final answer
    x = 29,686.41

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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.