Home / 38,764.49-53,480.99-21,987.77

Finding the Fourth Proportional to 38,764.49, 53,480.99 and 21,987.77

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Solution

The fourth proportional to 38,764.49, 53,480.99 and 21,987.77 is: 30,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,764.49 : 53,480.99 = 21,987.77 : x
  2. Step 2: Convert to fraction form
    38,764.49/53,480.99 = 21,987.77/x
  3. Step 3: Cross multiply
    38,764.49x = 53,480.99 × 21,987.77
  4. Step 4: Simplify right side
    38,764.49x = 1,175,927,495.06
  5. Step 5: Solve for x
    x = 1,175,927,495.06/38,764.49
  6. Step 6: Final answer
    x = 30,335.18

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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.