Home / 31,548.23-47,290.40-20,461.96

Finding the Fourth Proportional to 31,548.23, 47,290.40 and 20,461.96

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Solution

The fourth proportional to 31,548.23, 47,290.40 and 20,461.96 is: 30,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.23 : 47,290.40 = 20,461.96 : x
  2. Step 2: Convert to fraction form
    31,548.23/47,290.40 = 20,461.96/x
  3. Step 3: Cross multiply
    31,548.23x = 47,290.40 × 20,461.96
  4. Step 4: Simplify right side
    31,548.23x = 967,653,934.42
  5. Step 5: Solve for x
    x = 967,653,934.42/31,548.23
  6. Step 6: Final answer
    x = 30,672.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.