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Finding the Fourth Proportional to 31,595.61, 47,408.07 and 13,823.93

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Solution

The fourth proportional to 31,595.61, 47,408.07 and 13,823.93 is: 20,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,595.61 : 47,408.07 = 13,823.93 : x
  2. Step 2: Convert to fraction form
    31,595.61/47,408.07 = 13,823.93/x
  3. Step 3: Cross multiply
    31,595.61x = 47,408.07 × 13,823.93
  4. Step 4: Simplify right side
    31,595.61x = 655,365,875.67
  5. Step 5: Solve for x
    x = 655,365,875.67/31,595.61
  6. Step 6: Final answer
    x = 20,742.31

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