Home / 28,134.02-38,825.73-15,559.58

Finding the Fourth Proportional to 28,134.02, 38,825.73 and 15,559.58

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Solution

The fourth proportional to 28,134.02, 38,825.73 and 15,559.58 is: 21,472.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.02 : 38,825.73 = 15,559.58 : x
  2. Step 2: Convert to fraction form
    28,134.02/38,825.73 = 15,559.58/x
  3. Step 3: Cross multiply
    28,134.02x = 38,825.73 × 15,559.58
  4. Step 4: Simplify right side
    28,134.02x = 604,112,051.99
  5. Step 5: Solve for x
    x = 604,112,051.99/28,134.02
  6. Step 6: Final answer
    x = 21,472.65

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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.