Home / 27,871.43-38,461.77-15,124.05

Finding the Fourth Proportional to 27,871.43, 38,461.77 and 15,124.05

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Solution

The fourth proportional to 27,871.43, 38,461.77 and 15,124.05 is: 20,870.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871.43 : 38,461.77 = 15,124.05 : x
  2. Step 2: Convert to fraction form
    27,871.43/38,461.77 = 15,124.05/x
  3. Step 3: Cross multiply
    27,871.43x = 38,461.77 × 15,124.05
  4. Step 4: Simplify right side
    27,871.43x = 581,697,732.57
  5. Step 5: Solve for x
    x = 581,697,732.57/27,871.43
  6. Step 6: Final answer
    x = 20,870.76

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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.