Home / 27,555.50-38,026.78-14,980.70

Finding the Fourth Proportional to 27,555.50, 38,026.78 and 14,980.70

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Solution

The fourth proportional to 27,555.50, 38,026.78 and 14,980.70 is: 20,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555.50 : 38,026.78 = 14,980.70 : x
  2. Step 2: Convert to fraction form
    27,555.50/38,026.78 = 14,980.70/x
  3. Step 3: Cross multiply
    27,555.50x = 38,026.78 × 14,980.70
  4. Step 4: Simplify right side
    27,555.50x = 569,667,783.15
  5. Step 5: Solve for x
    x = 569,667,783.15/27,555.50
  6. Step 6: Final answer
    x = 20,673.47

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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.