Home / 27,830.60-38,457.09-20,263.73

Finding the Fourth Proportional to 27,830.60, 38,457.09 and 20,263.73

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Solution

The fourth proportional to 27,830.60, 38,457.09 and 20,263.73 is: 28,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,830.60 : 38,457.09 = 20,263.73 : x
  2. Step 2: Convert to fraction form
    27,830.60/38,457.09 = 20,263.73/x
  3. Step 3: Cross multiply
    27,830.60x = 38,457.09 × 20,263.73
  4. Step 4: Simplify right side
    27,830.60x = 779,284,088.35
  5. Step 5: Solve for x
    x = 779,284,088.35/27,830.60
  6. Step 6: Final answer
    x = 28,000.98

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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.