Home / 39,419.45-59,045.10-31,890.70

Finding the Fourth Proportional to 39,419.45, 59,045.10 and 31,890.70

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Solution

The fourth proportional to 39,419.45, 59,045.10 and 31,890.70 is: 47,768.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.45 : 59,045.10 = 31,890.70 : x
  2. Step 2: Convert to fraction form
    39,419.45/59,045.10 = 31,890.70/x
  3. Step 3: Cross multiply
    39,419.45x = 59,045.10 × 31,890.70
  4. Step 4: Simplify right side
    39,419.45x = 1,882,989,422.96
  5. Step 5: Solve for x
    x = 1,882,989,422.96/39,419.45
  6. Step 6: Final answer
    x = 47,768.03

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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.