Home / 14,258.48-21,387.72-3,870.23

Finding the Fourth Proportional to 14,258.48, 21,387.72 and 3,870.23

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Solution

The fourth proportional to 14,258.48, 21,387.72 and 3,870.23 is: 5,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.48 : 21,387.72 = 3,870.23 : x
  2. Step 2: Convert to fraction form
    14,258.48/21,387.72 = 3,870.23/x
  3. Step 3: Cross multiply
    14,258.48x = 21,387.72 × 3,870.23
  4. Step 4: Simplify right side
    14,258.48x = 82,775,288.64
  5. Step 5: Solve for x
    x = 82,775,288.64/14,258.48
  6. Step 6: Final answer
    x = 5,805.34

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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.