Home / 27,554.40-38,023.20-14,978.88

Finding the Fourth Proportional to 27,554.40, 38,023.20 and 14,978.88

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Solution

The fourth proportional to 27,554.40, 38,023.20 and 14,978.88 is: 20,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,554.40 : 38,023.20 = 14,978.88 : x
  2. Step 2: Convert to fraction form
    27,554.40/38,023.20 = 14,978.88/x
  3. Step 3: Cross multiply
    27,554.40x = 38,023.20 × 14,978.88
  4. Step 4: Simplify right side
    27,554.40x = 569,544,950.02
  5. Step 5: Solve for x
    x = 569,544,950.02/27,554.40
  6. Step 6: Final answer
    x = 20,669.84

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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.