Home / 19,921.47-27,492.53-12,370.25

Finding the Fourth Proportional to 19,921.47, 27,492.53 and 12,370.25

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Solution

The fourth proportional to 19,921.47, 27,492.53 and 12,370.25 is: 17,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.47 : 27,492.53 = 12,370.25 : x
  2. Step 2: Convert to fraction form
    19,921.47/27,492.53 = 12,370.25/x
  3. Step 3: Cross multiply
    19,921.47x = 27,492.53 × 12,370.25
  4. Step 4: Simplify right side
    19,921.47x = 340,089,269.92
  5. Step 5: Solve for x
    x = 340,089,269.92/19,921.47
  6. Step 6: Final answer
    x = 17,071.49

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1.5x scale

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.