Home / 26,433.84-36,485.64-15,831.76

Finding the Fourth Proportional to 26,433.84, 36,485.64 and 15,831.76

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Solution

The fourth proportional to 26,433.84, 36,485.64 and 15,831.76 is: 21,851.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,433.84 : 36,485.64 = 15,831.76 : x
  2. Step 2: Convert to fraction form
    26,433.84/36,485.64 = 15,831.76/x
  3. Step 3: Cross multiply
    26,433.84x = 36,485.64 × 15,831.76
  4. Step 4: Simplify right side
    26,433.84x = 577,631,895.93
  5. Step 5: Solve for x
    x = 577,631,895.93/26,433.84
  6. Step 6: Final answer
    x = 21,851.99

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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.