Home / 14,291.48-21,436.56-3,903.20

Finding the Fourth Proportional to 14,291.48, 21,436.56 and 3,903.20

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Solution

The fourth proportional to 14,291.48, 21,436.56 and 3,903.20 is: 5,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.48 : 21,436.56 = 3,903.20 : x
  2. Step 2: Convert to fraction form
    14,291.48/21,436.56 = 3,903.20/x
  3. Step 3: Cross multiply
    14,291.48x = 21,436.56 × 3,903.20
  4. Step 4: Simplify right side
    14,291.48x = 83,671,180.99
  5. Step 5: Solve for x
    x = 83,671,180.99/14,291.48
  6. Step 6: Final answer
    x = 5,854.62

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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.