Home / 28,577.96-39,437.15-15,831.10

Finding the Fourth Proportional to 28,577.96, 39,437.15 and 15,831.10

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Solution

The fourth proportional to 28,577.96, 39,437.15 and 15,831.10 is: 21,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.96 : 39,437.15 = 15,831.10 : x
  2. Step 2: Convert to fraction form
    28,577.96/39,437.15 = 15,831.10/x
  3. Step 3: Cross multiply
    28,577.96x = 39,437.15 × 15,831.10
  4. Step 4: Simplify right side
    28,577.96x = 624,333,465.37
  5. Step 5: Solve for x
    x = 624,333,465.37/28,577.96
  6. Step 6: Final answer
    x = 21,846.68

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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.