Home / 23,030.99-31,783.38-12,959.79

Finding the Fourth Proportional to 23,030.99, 31,783.38 and 12,959.79

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Solution

The fourth proportional to 23,030.99, 31,783.38 and 12,959.79 is: 17,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.99 : 31,783.38 = 12,959.79 : x
  2. Step 2: Convert to fraction form
    23,030.99/31,783.38 = 12,959.79/x
  3. Step 3: Cross multiply
    23,030.99x = 31,783.38 × 12,959.79
  4. Step 4: Simplify right side
    23,030.99x = 411,905,835.40
  5. Step 5: Solve for x
    x = 411,905,835.40/23,030.99
  6. Step 6: Final answer
    x = 17,884.85

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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.