Home / 18,427.79-25,430.35-10,470.03

Finding the Fourth Proportional to 18,427.79, 25,430.35 and 10,470.03

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Solution

The fourth proportional to 18,427.79, 25,430.35 and 10,470.03 is: 14,448.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.79 : 25,430.35 = 10,470.03 : x
  2. Step 2: Convert to fraction form
    18,427.79/25,430.35 = 10,470.03/x
  3. Step 3: Cross multiply
    18,427.79x = 25,430.35 × 10,470.03
  4. Step 4: Simplify right side
    18,427.79x = 266,256,400.26
  5. Step 5: Solve for x
    x = 266,256,400.26/18,427.79
  6. Step 6: Final answer
    x = 14,448.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.