Home / 20,548.16-28,347.46-12,045.98

Finding the Fourth Proportional to 20,548.16, 28,347.46 and 12,045.98

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Solution

The fourth proportional to 20,548.16, 28,347.46 and 12,045.98 is: 16,618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.16 : 28,347.46 = 12,045.98 : x
  2. Step 2: Convert to fraction form
    20,548.16/28,347.46 = 12,045.98/x
  3. Step 3: Cross multiply
    20,548.16x = 28,347.46 × 12,045.98
  4. Step 4: Simplify right side
    20,548.16x = 341,472,936.21
  5. Step 5: Solve for x
    x = 341,472,936.21/20,548.16
  6. Step 6: Final answer
    x = 16,618.18

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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.