Home / 35,386.79-48,828.19-20,276.54

Finding the Fourth Proportional to 35,386.79, 48,828.19 and 20,276.54

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Solution

The fourth proportional to 35,386.79, 48,828.19 and 20,276.54 is: 27,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,386.79 : 48,828.19 = 20,276.54 : x
  2. Step 2: Convert to fraction form
    35,386.79/48,828.19 = 20,276.54/x
  3. Step 3: Cross multiply
    35,386.79x = 48,828.19 × 20,276.54
  4. Step 4: Simplify right side
    35,386.79x = 990,066,869.73
  5. Step 5: Solve for x
    x = 990,066,869.73/35,386.79
  6. Step 6: Final answer
    x = 27,978.43

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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.