Home / 39,057.10-53,898.93-21,152.05

Finding the Fourth Proportional to 39,057.10, 53,898.93 and 21,152.05

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Solution

The fourth proportional to 39,057.10, 53,898.93 and 21,152.05 is: 29,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,057.10 : 53,898.93 = 21,152.05 : x
  2. Step 2: Convert to fraction form
    39,057.10/53,898.93 = 21,152.05/x
  3. Step 3: Cross multiply
    39,057.10x = 53,898.93 × 21,152.05
  4. Step 4: Simplify right side
    39,057.10x = 1,140,072,862.31
  5. Step 5: Solve for x
    x = 1,140,072,862.31/39,057.10
  6. Step 6: Final answer
    x = 29,189.90

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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.