Home / 22,631.79-31,235.60-12,563.45

Finding the Fourth Proportional to 22,631.79, 31,235.60 and 12,563.45

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Solution

The fourth proportional to 22,631.79, 31,235.60 and 12,563.45 is: 17,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,631.79 : 31,235.60 = 12,563.45 : x
  2. Step 2: Convert to fraction form
    22,631.79/31,235.60 = 12,563.45/x
  3. Step 3: Cross multiply
    22,631.79x = 31,235.60 × 12,563.45
  4. Step 4: Simplify right side
    22,631.79x = 392,427,008.32
  5. Step 5: Solve for x
    x = 392,427,008.32/22,631.79
  6. Step 6: Final answer
    x = 17,339.64

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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.