Home / 39,490.52-54,495.36-21,586.16

Finding the Fourth Proportional to 39,490.52, 54,495.36 and 21,586.16

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Solution

The fourth proportional to 39,490.52, 54,495.36 and 21,586.16 is: 29,788.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,490.52 : 54,495.36 = 21,586.16 : x
  2. Step 2: Convert to fraction form
    39,490.52/54,495.36 = 21,586.16/x
  3. Step 3: Cross multiply
    39,490.52x = 54,495.36 × 21,586.16
  4. Step 4: Simplify right side
    39,490.52x = 1,176,345,560.22
  5. Step 5: Solve for x
    x = 1,176,345,560.22/39,490.52
  6. Step 6: Final answer
    x = 29,788.05

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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.