Home / 37,420.10-51,640.49-20,653.06

Finding the Fourth Proportional to 37,420.10, 51,640.49 and 20,653.06

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Solution

The fourth proportional to 37,420.10, 51,640.49 and 20,653.06 is: 28,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.10 : 51,640.49 = 20,653.06 : x
  2. Step 2: Convert to fraction form
    37,420.10/51,640.49 = 20,653.06/x
  3. Step 3: Cross multiply
    37,420.10x = 51,640.49 × 20,653.06
  4. Step 4: Simplify right side
    37,420.10x = 1,066,534,138.40
  5. Step 5: Solve for x
    x = 1,066,534,138.40/37,420.10
  6. Step 6: Final answer
    x = 28,501.64

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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.