Home / 39,356.58-54,312.12-21,451.23

Finding the Fourth Proportional to 39,356.58, 54,312.12 and 21,451.23

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Solution

The fourth proportional to 39,356.58, 54,312.12 and 21,451.23 is: 29,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.58 : 54,312.12 = 21,451.23 : x
  2. Step 2: Convert to fraction form
    39,356.58/54,312.12 = 21,451.23/x
  3. Step 3: Cross multiply
    39,356.58x = 54,312.12 × 21,451.23
  4. Step 4: Simplify right side
    39,356.58x = 1,165,061,777.91
  5. Step 5: Solve for x
    x = 1,165,061,777.91/39,356.58
  6. Step 6: Final answer
    x = 29,602.72

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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.