Home / 25,740.10-38,547.28-15,865.80

Finding the Fourth Proportional to 25,740.10, 38,547.28 and 15,865.80

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Solution

The fourth proportional to 25,740.10, 38,547.28 and 15,865.80 is: 23,759.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,740.10 : 38,547.28 = 15,865.80 : x
  2. Step 2: Convert to fraction form
    25,740.10/38,547.28 = 15,865.80/x
  3. Step 3: Cross multiply
    25,740.10x = 38,547.28 × 15,865.80
  4. Step 4: Simplify right side
    25,740.10x = 611,583,396.41
  5. Step 5: Solve for x
    x = 611,583,396.41/25,740.10
  6. Step 6: Final answer
    x = 23,759.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.