Home / 38,662.61-53,461.77-30,691.01

Finding the Fourth Proportional to 38,662.61, 53,461.77 and 30,691.01

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Solution

The fourth proportional to 38,662.61, 53,461.77 and 30,691.01 is: 42,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,662.61 : 53,461.77 = 30,691.01 : x
  2. Step 2: Convert to fraction form
    38,662.61/53,461.77 = 30,691.01/x
  3. Step 3: Cross multiply
    38,662.61x = 53,461.77 × 30,691.01
  4. Step 4: Simplify right side
    38,662.61x = 1,640,795,717.69
  5. Step 5: Solve for x
    x = 1,640,795,717.69/38,662.61
  6. Step 6: Final answer
    x = 42,438.82

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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.