Home / 14,359.20-21,539.28-3,970.08

Finding the Fourth Proportional to 14,359.20, 21,539.28 and 3,970.08

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Solution

The fourth proportional to 14,359.20, 21,539.28 and 3,970.08 is: 5,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.20 : 21,539.28 = 3,970.08 : x
  2. Step 2: Convert to fraction form
    14,359.20/21,539.28 = 3,970.08/x
  3. Step 3: Cross multiply
    14,359.20x = 21,539.28 × 3,970.08
  4. Step 4: Simplify right side
    14,359.20x = 85,512,664.74
  5. Step 5: Solve for x
    x = 85,512,664.74/14,359.20
  6. Step 6: Final answer
    x = 5,955.25

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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.