Home / 23,047.02-31,807.89-12,977.40

Finding the Fourth Proportional to 23,047.02, 31,807.89 and 12,977.40

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Solution

The fourth proportional to 23,047.02, 31,807.89 and 12,977.40 is: 17,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,047.02 : 31,807.89 = 12,977.40 : x
  2. Step 2: Convert to fraction form
    23,047.02/31,807.89 = 12,977.40/x
  3. Step 3: Cross multiply
    23,047.02x = 31,807.89 × 12,977.40
  4. Step 4: Simplify right side
    23,047.02x = 412,783,711.69
  5. Step 5: Solve for x
    x = 412,783,711.69/23,047.02
  6. Step 6: Final answer
    x = 17,910.50

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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.