Home / 38,478.67-53,130.62-29,511.97

Finding the Fourth Proportional to 38,478.67, 53,130.62 and 29,511.97

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Solution

The fourth proportional to 38,478.67, 53,130.62 and 29,511.97 is: 40,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.67 : 53,130.62 = 29,511.97 : x
  2. Step 2: Convert to fraction form
    38,478.67/53,130.62 = 29,511.97/x
  3. Step 3: Cross multiply
    38,478.67x = 53,130.62 × 29,511.97
  4. Step 4: Simplify right side
    38,478.67x = 1,567,989,263.52
  5. Step 5: Solve for x
    x = 1,567,989,263.52/38,478.67
  6. Step 6: Final answer
    x = 40,749.57

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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.