Home / 20,885.46-28,822.02-12,501.96

Finding the Fourth Proportional to 20,885.46, 28,822.02 and 12,501.96

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Solution

The fourth proportional to 20,885.46, 28,822.02 and 12,501.96 is: 17,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885.46 : 28,822.02 = 12,501.96 : x
  2. Step 2: Convert to fraction form
    20,885.46/28,822.02 = 12,501.96/x
  3. Step 3: Cross multiply
    20,885.46x = 28,822.02 × 12,501.96
  4. Step 4: Simplify right side
    20,885.46x = 360,331,741.16
  5. Step 5: Solve for x
    x = 360,331,741.16/20,885.46
  6. Step 6: Final answer
    x = 17,252.76

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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.