Home / 39,574.48-54,612.78-21,670.58

Finding the Fourth Proportional to 39,574.48, 54,612.78 and 21,670.58

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Solution

The fourth proportional to 39,574.48, 54,612.78 and 21,670.58 is: 29,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,574.48 : 54,612.78 = 21,670.58 : x
  2. Step 2: Convert to fraction form
    39,574.48/54,612.78 = 21,670.58/x
  3. Step 3: Cross multiply
    39,574.48x = 54,612.78 × 21,670.58
  4. Step 4: Simplify right side
    39,574.48x = 1,183,490,618.01
  5. Step 5: Solve for x
    x = 1,183,490,618.01/39,574.48
  6. Step 6: Final answer
    x = 29,905.40

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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.