Home / 27,256.80-40,885.20-8,538.40

Finding the Fourth Proportional to 27,256.80, 40,885.20 and 8,538.40

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Solution

The fourth proportional to 27,256.80, 40,885.20 and 8,538.40 is: 12,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,256.80 : 40,885.20 = 8,538.40 : x
  2. Step 2: Convert to fraction form
    27,256.80/40,885.20 = 8,538.40/x
  3. Step 3: Cross multiply
    27,256.80x = 40,885.20 × 8,538.40
  4. Step 4: Simplify right side
    27,256.80x = 349,094,191.68
  5. Step 5: Solve for x
    x = 349,094,191.68/27,256.80
  6. Step 6: Final answer
    x = 12,807.60

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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.