Home / 22,585.63-31,168.23-12,513.99

Finding the Fourth Proportional to 22,585.63, 31,168.23 and 12,513.99

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Solution

The fourth proportional to 22,585.63, 31,168.23 and 12,513.99 is: 17,269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,585.63 : 31,168.23 = 12,513.99 : x
  2. Step 2: Convert to fraction form
    22,585.63/31,168.23 = 12,513.99/x
  3. Step 3: Cross multiply
    22,585.63x = 31,168.23 × 12,513.99
  4. Step 4: Simplify right side
    22,585.63x = 390,038,855.97
  5. Step 5: Solve for x
    x = 390,038,855.97/22,585.63
  6. Step 6: Final answer
    x = 17,269.34

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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.