Home / 28,055.74-38,717.05-15,480.49

Finding the Fourth Proportional to 28,055.74, 38,717.05 and 15,480.49

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Solution

The fourth proportional to 28,055.74, 38,717.05 and 15,480.49 is: 21,363.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.74 : 38,717.05 = 15,480.49 : x
  2. Step 2: Convert to fraction form
    28,055.74/38,717.05 = 15,480.49/x
  3. Step 3: Cross multiply
    28,055.74x = 38,717.05 × 15,480.49
  4. Step 4: Simplify right side
    28,055.74x = 599,358,905.35
  5. Step 5: Solve for x
    x = 599,358,905.35/28,055.74
  6. Step 6: Final answer
    x = 21,363.15

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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.