Home / 23,125.65-31,913.40-12,515.28

Finding the Fourth Proportional to 23,125.65, 31,913.40 and 12,515.28

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Solution

The fourth proportional to 23,125.65, 31,913.40 and 12,515.28 is: 17,271.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,125.65 : 31,913.40 = 12,515.28 : x
  2. Step 2: Convert to fraction form
    23,125.65/31,913.40 = 12,515.28/x
  3. Step 3: Cross multiply
    23,125.65x = 31,913.40 × 12,515.28
  4. Step 4: Simplify right side
    23,125.65x = 399,405,069.73
  5. Step 5: Solve for x
    x = 399,405,069.73/23,125.65
  6. Step 6: Final answer
    x = 17,271.09

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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.