Home / 31,768.23-47,592.20-21,206.40

Finding the Fourth Proportional to 31,768.23, 47,592.20 and 21,206.40

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Solution

The fourth proportional to 31,768.23, 47,592.20 and 21,206.40 is: 31,769.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,768.23 : 47,592.20 = 21,206.40 : x
  2. Step 2: Convert to fraction form
    31,768.23/47,592.20 = 21,206.40/x
  3. Step 3: Cross multiply
    31,768.23x = 47,592.20 × 21,206.40
  4. Step 4: Simplify right side
    31,768.23x = 1,009,259,124.05
  5. Step 5: Solve for x
    x = 1,009,259,124.05/31,768.23
  6. Step 6: Final answer
    x = 31,769.45

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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.