Home / 38,484.48-53,109.41-21,256.80

Finding the Fourth Proportional to 38,484.48, 53,109.41 and 21,256.80

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Solution

The fourth proportional to 38,484.48, 53,109.41 and 21,256.80 is: 29,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,484.48 : 53,109.41 = 21,256.80 : x
  2. Step 2: Convert to fraction form
    38,484.48/53,109.41 = 21,256.80/x
  3. Step 3: Cross multiply
    38,484.48x = 53,109.41 × 21,256.80
  4. Step 4: Simplify right side
    38,484.48x = 1,128,936,106.49
  5. Step 5: Solve for x
    x = 1,128,936,106.49/38,484.48
  6. Step 6: Final answer
    x = 29,334.84

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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.