Home / 27,631.02-38,130.84-15,055.50

Finding the Fourth Proportional to 27,631.02, 38,130.84 and 15,055.50

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Solution

The fourth proportional to 27,631.02, 38,130.84 and 15,055.50 is: 20,776.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.02 : 38,130.84 = 15,055.50 : x
  2. Step 2: Convert to fraction form
    27,631.02/38,130.84 = 15,055.50/x
  3. Step 3: Cross multiply
    27,631.02x = 38,130.84 × 15,055.50
  4. Step 4: Simplify right side
    27,631.02x = 574,078,861.62
  5. Step 5: Solve for x
    x = 574,078,861.62/27,631.02
  6. Step 6: Final answer
    x = 20,776.61

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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.