Home / 27,485.12-37,929.68-14,909.84

Finding the Fourth Proportional to 27,485.12, 37,929.68 and 14,909.84

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Solution

The fourth proportional to 27,485.12, 37,929.68 and 14,909.84 is: 20,575.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,485.12 : 37,929.68 = 14,909.84 : x
  2. Step 2: Convert to fraction form
    27,485.12/37,929.68 = 14,909.84/x
  3. Step 3: Cross multiply
    27,485.12x = 37,929.68 × 14,909.84
  4. Step 4: Simplify right side
    27,485.12x = 565,525,460.05
  5. Step 5: Solve for x
    x = 565,525,460.05/27,485.12
  6. Step 6: Final answer
    x = 20,575.70

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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.