Home / 28,577.07-39,437.82-15,831.63

Finding the Fourth Proportional to 28,577.07, 39,437.82 and 15,831.63

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Solution

The fourth proportional to 28,577.07, 39,437.82 and 15,831.63 is: 21,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.07 : 39,437.82 = 15,831.63 : x
  2. Step 2: Convert to fraction form
    28,577.07/39,437.82 = 15,831.63/x
  3. Step 3: Cross multiply
    28,577.07x = 39,437.82 × 15,831.63
  4. Step 4: Simplify right side
    28,577.07x = 624,364,974.25
  5. Step 5: Solve for x
    x = 624,364,974.25/28,577.07
  6. Step 6: Final answer
    x = 21,848.46

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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.