Home / 32,780.63-45,237.29-18,634.38

Finding the Fourth Proportional to 32,780.63, 45,237.29 and 18,634.38

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Solution

The fourth proportional to 32,780.63, 45,237.29 and 18,634.38 is: 25,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,780.63 : 45,237.29 = 18,634.38 : x
  2. Step 2: Convert to fraction form
    32,780.63/45,237.29 = 18,634.38/x
  3. Step 3: Cross multiply
    32,780.63x = 45,237.29 × 18,634.38
  4. Step 4: Simplify right side
    32,780.63x = 842,968,758.86
  5. Step 5: Solve for x
    x = 842,968,758.86/32,780.63
  6. Step 6: Final answer
    x = 25,715.46

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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.