Home / 39,222.23-54,126.69-21,317.24

Finding the Fourth Proportional to 39,222.23, 54,126.69 and 21,317.24

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Solution

The fourth proportional to 39,222.23, 54,126.69 and 21,317.24 is: 29,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,222.23 : 54,126.69 = 21,317.24 : x
  2. Step 2: Convert to fraction form
    39,222.23/54,126.69 = 21,317.24/x
  3. Step 3: Cross multiply
    39,222.23x = 54,126.69 × 21,317.24
  4. Step 4: Simplify right side
    39,222.23x = 1,153,831,776.45
  5. Step 5: Solve for x
    x = 1,153,831,776.45/39,222.23
  6. Step 6: Final answer
    x = 29,417.80

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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.