Home / 27,720.78-38,254.67-14,973.96

Finding the Fourth Proportional to 27,720.78, 38,254.67 and 14,973.96

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Solution

The fourth proportional to 27,720.78, 38,254.67 and 14,973.96 is: 20,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.78 : 38,254.67 = 14,973.96 : x
  2. Step 2: Convert to fraction form
    27,720.78/38,254.67 = 14,973.96/x
  3. Step 3: Cross multiply
    27,720.78x = 38,254.67 × 14,973.96
  4. Step 4: Simplify right side
    27,720.78x = 572,823,898.39
  5. Step 5: Solve for x
    x = 572,823,898.39/27,720.78
  6. Step 6: Final answer
    x = 20,664.06

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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.