Home / 38,345.55-57,395.54-20,531.68

Finding the Fourth Proportional to 38,345.55, 57,395.54 and 20,531.68

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Solution

The fourth proportional to 38,345.55, 57,395.54 and 20,531.68 is: 30,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345.55 : 57,395.54 = 20,531.68 : x
  2. Step 2: Convert to fraction form
    38,345.55/57,395.54 = 20,531.68/x
  3. Step 3: Cross multiply
    38,345.55x = 57,395.54 × 20,531.68
  4. Step 4: Simplify right side
    38,345.55x = 1,178,426,653.06
  5. Step 5: Solve for x
    x = 1,178,426,653.06/38,345.55
  6. Step 6: Final answer
    x = 30,731.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.