Home / 39,433.19-54,418.63-21,528.95

Finding the Fourth Proportional to 39,433.19, 54,418.63 and 21,528.95

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Solution

The fourth proportional to 39,433.19, 54,418.63 and 21,528.95 is: 29,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,433.19 : 54,418.63 = 21,528.95 : x
  2. Step 2: Convert to fraction form
    39,433.19/54,418.63 = 21,528.95/x
  3. Step 3: Cross multiply
    39,433.19x = 54,418.63 × 21,528.95
  4. Step 4: Simplify right side
    39,433.19x = 1,171,575,984.89
  5. Step 5: Solve for x
    x = 1,171,575,984.89/39,433.19
  6. Step 6: Final answer
    x = 29,710.40

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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.