Home / 39,490.61-54,498.37-21,585.23

Finding the Fourth Proportional to 39,490.61, 54,498.37 and 21,585.23

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Solution

The fourth proportional to 39,490.61, 54,498.37 and 21,585.23 is: 29,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,490.61 : 54,498.37 = 21,585.23 : x
  2. Step 2: Convert to fraction form
    39,490.61/54,498.37 = 21,585.23/x
  3. Step 3: Cross multiply
    39,490.61x = 54,498.37 × 21,585.23
  4. Step 4: Simplify right side
    39,490.61x = 1,176,360,076.01
  5. Step 5: Solve for x
    x = 1,176,360,076.01/39,490.61
  6. Step 6: Final answer
    x = 29,788.35

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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.