Home / 27,960.50-38,585.50-15,386.06

Finding the Fourth Proportional to 27,960.50, 38,585.50 and 15,386.06

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Solution

The fourth proportional to 27,960.50, 38,585.50 and 15,386.06 is: 21,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.50 : 38,585.50 = 15,386.06 : x
  2. Step 2: Convert to fraction form
    27,960.50/38,585.50 = 15,386.06/x
  3. Step 3: Cross multiply
    27,960.50x = 38,585.50 × 15,386.06
  4. Step 4: Simplify right side
    27,960.50x = 593,678,818.13
  5. Step 5: Solve for x
    x = 593,678,818.13/27,960.50
  6. Step 6: Final answer
    x = 21,232.77

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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.