Home / 25,110.40-34,641.60-15,683.20

Finding the Fourth Proportional to 25,110.40, 34,641.60 and 15,683.20

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Solution

The fourth proportional to 25,110.40, 34,641.60 and 15,683.20 is: 21,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,110.40 : 34,641.60 = 15,683.20 : x
  2. Step 2: Convert to fraction form
    25,110.40/34,641.60 = 15,683.20/x
  3. Step 3: Cross multiply
    25,110.40x = 34,641.60 × 15,683.20
  4. Step 4: Simplify right side
    25,110.40x = 543,291,141.12
  5. Step 5: Solve for x
    x = 543,291,141.12/25,110.40
  6. Step 6: Final answer
    x = 21,636.10

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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.