Home / 28,010.60-38,651.13-18,955.76

Finding the Fourth Proportional to 28,010.60, 38,651.13 and 18,955.76

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Solution

The fourth proportional to 28,010.60, 38,651.13 and 18,955.76 is: 26,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.60 : 38,651.13 = 18,955.76 : x
  2. Step 2: Convert to fraction form
    28,010.60/38,651.13 = 18,955.76/x
  3. Step 3: Cross multiply
    28,010.60x = 38,651.13 × 18,955.76
  4. Step 4: Simplify right side
    28,010.60x = 732,661,544.01
  5. Step 5: Solve for x
    x = 732,661,544.01/28,010.60
  6. Step 6: Final answer
    x = 26,156.58

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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.