Home / 31,516.40-43,501.56-22,087.28

Finding the Fourth Proportional to 31,516.40, 43,501.56 and 22,087.28

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Solution

The fourth proportional to 31,516.40, 43,501.56 and 22,087.28 is: 30,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,516.40 : 43,501.56 = 22,087.28 : x
  2. Step 2: Convert to fraction form
    31,516.40/43,501.56 = 22,087.28/x
  3. Step 3: Cross multiply
    31,516.40x = 43,501.56 × 22,087.28
  4. Step 4: Simplify right side
    31,516.40x = 960,831,136.16
  5. Step 5: Solve for x
    x = 960,831,136.16/31,516.40
  6. Step 6: Final answer
    x = 30,486.70

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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.