Home / 30,397.48-41,915.44-19,767.40

Finding the Fourth Proportional to 30,397.48, 41,915.44 and 19,767.40

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Solution

The fourth proportional to 30,397.48, 41,915.44 and 19,767.40 is: 27,257.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,397.48 : 41,915.44 = 19,767.40 : x
  2. Step 2: Convert to fraction form
    30,397.48/41,915.44 = 19,767.40/x
  3. Step 3: Cross multiply
    30,397.48x = 41,915.44 × 19,767.40
  4. Step 4: Simplify right side
    30,397.48x = 828,559,268.66
  5. Step 5: Solve for x
    x = 828,559,268.66/30,397.48
  6. Step 6: Final answer
    x = 27,257.50

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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.