Home / 27,328.74-37,675.17-20,621.94

Finding the Fourth Proportional to 27,328.74, 37,675.17 and 20,621.94

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Solution

The fourth proportional to 27,328.74, 37,675.17 and 20,621.94 is: 28,429.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.74 : 37,675.17 = 20,621.94 : x
  2. Step 2: Convert to fraction form
    27,328.74/37,675.17 = 20,621.94/x
  3. Step 3: Cross multiply
    27,328.74x = 37,675.17 × 20,621.94
  4. Step 4: Simplify right side
    27,328.74x = 776,935,095.23
  5. Step 5: Solve for x
    x = 776,935,095.23/27,328.74
  6. Step 6: Final answer
    x = 28,429.23

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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.