Home / 22,516.16-31,070.32-12,444.60

Finding the Fourth Proportional to 22,516.16, 31,070.32 and 12,444.60

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Solution

The fourth proportional to 22,516.16, 31,070.32 and 12,444.60 is: 17,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,516.16 : 31,070.32 = 12,444.60 : x
  2. Step 2: Convert to fraction form
    22,516.16/31,070.32 = 12,444.60/x
  3. Step 3: Cross multiply
    22,516.16x = 31,070.32 × 12,444.60
  4. Step 4: Simplify right side
    22,516.16x = 386,657,704.27
  5. Step 5: Solve for x
    x = 386,657,704.27/22,516.16
  6. Step 6: Final answer
    x = 17,172.45

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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.