Home / 39,352.95-54,307.32-21,447.90

Finding the Fourth Proportional to 39,352.95, 54,307.32 and 21,447.90

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Solution

The fourth proportional to 39,352.95, 54,307.32 and 21,447.90 is: 29,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,352.95 : 54,307.32 = 21,447.90 : x
  2. Step 2: Convert to fraction form
    39,352.95/54,307.32 = 21,447.90/x
  3. Step 3: Cross multiply
    39,352.95x = 54,307.32 × 21,447.90
  4. Step 4: Simplify right side
    39,352.95x = 1,164,777,968.63
  5. Step 5: Solve for x
    x = 1,164,777,968.63/39,352.95
  6. Step 6: Final answer
    x = 29,598.24

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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.