Home / 38,736.81-53,457.27-21,744.72

Finding the Fourth Proportional to 38,736.81, 53,457.27 and 21,744.72

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Solution

The fourth proportional to 38,736.81, 53,457.27 and 21,744.72 is: 30,007.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,736.81 : 53,457.27 = 21,744.72 : x
  2. Step 2: Convert to fraction form
    38,736.81/53,457.27 = 21,744.72/x
  3. Step 3: Cross multiply
    38,736.81x = 53,457.27 × 21,744.72
  4. Step 4: Simplify right side
    38,736.81x = 1,162,413,368.11
  5. Step 5: Solve for x
    x = 1,162,413,368.11/38,736.81
  6. Step 6: Final answer
    x = 30,007.98

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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.