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Finding the Fourth Proportional to 46,987.40, 70,483.80 and 13,712.60

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Solution

The fourth proportional to 46,987.40, 70,483.80 and 13,712.60 is: 20,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,987.40 : 70,483.80 = 13,712.60 : x
  2. Step 2: Convert to fraction form
    46,987.40/70,483.80 = 13,712.60/x
  3. Step 3: Cross multiply
    46,987.40x = 70,483.80 × 13,712.60
  4. Step 4: Simplify right side
    46,987.40x = 966,516,155.88
  5. Step 5: Solve for x
    x = 966,516,155.88/46,987.40
  6. Step 6: Final answer
    x = 20,569.69

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