Home / 35,688.72-53,516.34-20,902.08

Finding the Fourth Proportional to 35,688.72, 53,516.34 and 20,902.08

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Solution

The fourth proportional to 35,688.72, 53,516.34 and 20,902.08 is: 31,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,688.72 : 53,516.34 = 20,902.08 : x
  2. Step 2: Convert to fraction form
    35,688.72/53,516.34 = 20,902.08/x
  3. Step 3: Cross multiply
    35,688.72x = 53,516.34 × 20,902.08
  4. Step 4: Simplify right side
    35,688.72x = 1,118,602,819.99
  5. Step 5: Solve for x
    x = 1,118,602,819.99/35,688.72
  6. Step 6: Final answer
    x = 31,343.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.