Home / 84,853.41-127,280-21,673.60

Finding the Fourth Proportional to 84,853.41, 127,280 and 21,673.60

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Solution

The fourth proportional to 84,853.41, 127,280 and 21,673.60 is: 32,510.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,853.41 : 127,280 = 21,673.60 : x
  2. Step 2: Convert to fraction form
    84,853.41/127,280 = 21,673.60/x
  3. Step 3: Cross multiply
    84,853.41x = 127,280 × 21,673.60
  4. Step 4: Simplify right side
    84,853.41x = 2,758,615,808
  5. Step 5: Solve for x
    x = 2,758,615,808/84,853.41
  6. Step 6: Final answer
    x = 32,510.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.