Home / 28,036.75-38,690.73-15,462.31

Finding the Fourth Proportional to 28,036.75, 38,690.73 and 15,462.31

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Solution

The fourth proportional to 28,036.75, 38,690.73 and 15,462.31 is: 21,338.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.75 : 38,690.73 = 15,462.31 : x
  2. Step 2: Convert to fraction form
    28,036.75/38,690.73 = 15,462.31/x
  3. Step 3: Cross multiply
    28,036.75x = 38,690.73 × 15,462.31
  4. Step 4: Simplify right side
    28,036.75x = 598,248,061.39
  5. Step 5: Solve for x
    x = 598,248,061.39/28,036.75
  6. Step 6: Final answer
    x = 21,338.00

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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.