Home / 22,916.40-31,627.56-13,485.84

Finding the Fourth Proportional to 22,916.40, 31,627.56 and 13,485.84

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Solution

The fourth proportional to 22,916.40, 31,627.56 and 13,485.84 is: 18,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,916.40 : 31,627.56 = 13,485.84 : x
  2. Step 2: Convert to fraction form
    22,916.40/31,627.56 = 13,485.84/x
  3. Step 3: Cross multiply
    22,916.40x = 31,627.56 × 13,485.84
  4. Step 4: Simplify right side
    22,916.40x = 426,524,213.75
  5. Step 5: Solve for x
    x = 426,524,213.75/22,916.40
  6. Step 6: Final answer
    x = 18,612.18

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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.