Home / 22,657.89-31,268.57-13,707.03

Finding the Fourth Proportional to 22,657.89, 31,268.57 and 13,707.03

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Solution

The fourth proportional to 22,657.89, 31,268.57 and 13,707.03 is: 18,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,657.89 : 31,268.57 = 13,707.03 : x
  2. Step 2: Convert to fraction form
    22,657.89/31,268.57 = 13,707.03/x
  3. Step 3: Cross multiply
    22,657.89x = 31,268.57 × 13,707.03
  4. Step 4: Simplify right side
    22,657.89x = 428,599,158.51
  5. Step 5: Solve for x
    x = 428,599,158.51/22,657.89
  6. Step 6: Final answer
    x = 18,916.11

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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.