Home / 14,287.16-21,430.50-3,898.88

Finding the Fourth Proportional to 14,287.16, 21,430.50 and 3,898.88

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Solution

The fourth proportional to 14,287.16, 21,430.50 and 3,898.88 is: 5,848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.16 : 21,430.50 = 3,898.88 : x
  2. Step 2: Convert to fraction form
    14,287.16/21,430.50 = 3,898.88/x
  3. Step 3: Cross multiply
    14,287.16x = 21,430.50 × 3,898.88
  4. Step 4: Simplify right side
    14,287.16x = 83,554,947.84
  5. Step 5: Solve for x
    x = 83,554,947.84/14,287.16
  6. Step 6: Final answer
    x = 5,848.25

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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.