Home / 39,340.23-54,290.16-21,435.99

Finding the Fourth Proportional to 39,340.23, 54,290.16 and 21,435.99

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Solution

The fourth proportional to 39,340.23, 54,290.16 and 21,435.99 is: 29,582.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,340.23 : 54,290.16 = 21,435.99 : x
  2. Step 2: Convert to fraction form
    39,340.23/54,290.16 = 21,435.99/x
  3. Step 3: Cross multiply
    39,340.23x = 54,290.16 × 21,435.99
  4. Step 4: Simplify right side
    39,340.23x = 1,163,763,326.86
  5. Step 5: Solve for x
    x = 1,163,763,326.86/39,340.23
  6. Step 6: Final answer
    x = 29,582.02

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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.