Home / 27,113.96-40,515.54-20,666.88

Finding the Fourth Proportional to 27,113.96, 40,515.54 and 20,666.88

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Solution

The fourth proportional to 27,113.96, 40,515.54 and 20,666.88 is: 30,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,113.96 : 40,515.54 = 20,666.88 : x
  2. Step 2: Convert to fraction form
    27,113.96/40,515.54 = 20,666.88/x
  3. Step 3: Cross multiply
    27,113.96x = 40,515.54 × 20,666.88
  4. Step 4: Simplify right side
    27,113.96x = 837,329,803.32
  5. Step 5: Solve for x
    x = 837,329,803.32/27,113.96
  6. Step 6: Final answer
    x = 30,881.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.