Home / 37,455.36-51,688.08-20,688

Finding the Fourth Proportional to 37,455.36, 51,688.08 and 20,688

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Solution

The fourth proportional to 37,455.36, 51,688.08 and 20,688 is: 28,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,455.36 : 51,688.08 = 20,688 : x
  2. Step 2: Convert to fraction form
    37,455.36/51,688.08 = 20,688/x
  3. Step 3: Cross multiply
    37,455.36x = 51,688.08 × 20,688
  4. Step 4: Simplify right side
    37,455.36x = 1,069,322,999.04
  5. Step 5: Solve for x
    x = 1,069,322,999.04/37,455.36
  6. Step 6: Final answer
    x = 28,549.27

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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.