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Finding the Fourth Proportional to 22,602.88, 31,191.93 and 12,531.07

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Solution

The fourth proportional to 22,602.88, 31,191.93 and 12,531.07 is: 17,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,602.88 : 31,191.93 = 12,531.07 : x
  2. Step 2: Convert to fraction form
    22,602.88/31,191.93 = 12,531.07/x
  3. Step 3: Cross multiply
    22,602.88x = 31,191.93 × 12,531.07
  4. Step 4: Simplify right side
    22,602.88x = 390,868,074.81
  5. Step 5: Solve for x
    x = 390,868,074.81/22,602.88
  6. Step 6: Final answer
    x = 17,292.84

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