Home / 21,200.46-29,254.47-12,250.85

Finding the Fourth Proportional to 21,200.46, 29,254.47 and 12,250.85

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Solution

The fourth proportional to 21,200.46, 29,254.47 and 12,250.85 is: 16,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.46 : 29,254.47 = 12,250.85 : x
  2. Step 2: Convert to fraction form
    21,200.46/29,254.47 = 12,250.85/x
  3. Step 3: Cross multiply
    21,200.46x = 29,254.47 × 12,250.85
  4. Step 4: Simplify right side
    21,200.46x = 358,391,931.59
  5. Step 5: Solve for x
    x = 358,391,931.59/21,200.46
  6. Step 6: Final answer
    x = 16,904.91

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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.