Home / 28,867.92-39,828.66-16,931.76

Finding the Fourth Proportional to 28,867.92, 39,828.66 and 16,931.76

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Solution

The fourth proportional to 28,867.92, 39,828.66 and 16,931.76 is: 23,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.92 : 39,828.66 = 16,931.76 : x
  2. Step 2: Convert to fraction form
    28,867.92/39,828.66 = 16,931.76/x
  3. Step 3: Cross multiply
    28,867.92x = 39,828.66 × 16,931.76
  4. Step 4: Simplify right side
    28,867.92x = 674,369,312.24
  5. Step 5: Solve for x
    x = 674,369,312.24/28,867.92
  6. Step 6: Final answer
    x = 23,360.51

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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.