Home / 27,903.61-38,507.30-15,156.91

Finding the Fourth Proportional to 27,903.61, 38,507.30 and 15,156.91

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Solution

The fourth proportional to 27,903.61, 38,507.30 and 15,156.91 is: 20,916.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,903.61 : 38,507.30 = 15,156.91 : x
  2. Step 2: Convert to fraction form
    27,903.61/38,507.30 = 15,156.91/x
  3. Step 3: Cross multiply
    27,903.61x = 38,507.30 × 15,156.91
  4. Step 4: Simplify right side
    27,903.61x = 583,651,680.44
  5. Step 5: Solve for x
    x = 583,651,680.44/27,903.61
  6. Step 6: Final answer
    x = 20,916.71

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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.