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Finding the Fourth Proportional to 27,291.30, 40,915.35 and 14,979.30

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Solution

The fourth proportional to 27,291.30, 40,915.35 and 14,979.30 is: 22,457.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,291.30 : 40,915.35 = 14,979.30 : x
  2. Step 2: Convert to fraction form
    27,291.30/40,915.35 = 14,979.30/x
  3. Step 3: Cross multiply
    27,291.30x = 40,915.35 × 14,979.30
  4. Step 4: Simplify right side
    27,291.30x = 612,883,302.26
  5. Step 5: Solve for x
    x = 612,883,302.26/27,291.30
  6. Step 6: Final answer
    x = 22,457.09

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1.5x scale

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.