Home / 27,630.32-38,130.12-15,055.28

Finding the Fourth Proportional to 27,630.32, 38,130.12 and 15,055.28

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Solution

The fourth proportional to 27,630.32, 38,130.12 and 15,055.28 is: 20,776.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.32 : 38,130.12 = 15,055.28 : x
  2. Step 2: Convert to fraction form
    27,630.32/38,130.12 = 15,055.28/x
  3. Step 3: Cross multiply
    27,630.32x = 38,130.12 × 15,055.28
  4. Step 4: Simplify right side
    27,630.32x = 574,059,633.03
  5. Step 5: Solve for x
    x = 574,059,633.03/27,630.32
  6. Step 6: Final answer
    x = 20,776.44

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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.