Home / 27,437.81-41,143.73-12,642.35

Finding the Fourth Proportional to 27,437.81, 41,143.73 and 12,642.35

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Solution

The fourth proportional to 27,437.81, 41,143.73 and 12,642.35 is: 18,957.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,437.81 : 41,143.73 = 12,642.35 : x
  2. Step 2: Convert to fraction form
    27,437.81/41,143.73 = 12,642.35/x
  3. Step 3: Cross multiply
    27,437.81x = 41,143.73 × 12,642.35
  4. Step 4: Simplify right side
    27,437.81x = 520,153,166.04
  5. Step 5: Solve for x
    x = 520,153,166.04/27,437.81
  6. Step 6: Final answer
    x = 18,957.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.