Home / 39,703.47-54,792.25-21,798.32

Finding the Fourth Proportional to 39,703.47, 54,792.25 and 21,798.32

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Solution

The fourth proportional to 39,703.47, 54,792.25 and 21,798.32 is: 30,082.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.47 : 54,792.25 = 21,798.32 : x
  2. Step 2: Convert to fraction form
    39,703.47/54,792.25 = 21,798.32/x
  3. Step 3: Cross multiply
    39,703.47x = 54,792.25 × 21,798.32
  4. Step 4: Simplify right side
    39,703.47x = 1,194,378,670.56
  5. Step 5: Solve for x
    x = 1,194,378,670.56/39,703.47
  6. Step 6: Final answer
    x = 30,082.48

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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.