Home / 23,017.89-31,765.64-12,946.80

Finding the Fourth Proportional to 23,017.89, 31,765.64 and 12,946.80

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Solution

The fourth proportional to 23,017.89, 31,765.64 and 12,946.80 is: 17,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,017.89 : 31,765.64 = 12,946.80 : x
  2. Step 2: Convert to fraction form
    23,017.89/31,765.64 = 12,946.80/x
  3. Step 3: Cross multiply
    23,017.89x = 31,765.64 × 12,946.80
  4. Step 4: Simplify right side
    23,017.89x = 411,263,323.22
  5. Step 5: Solve for x
    x = 411,263,323.22/23,017.89
  6. Step 6: Final answer
    x = 17,867.12

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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.