Home / 39,931.10-59,933.53-20,223.49

Finding the Fourth Proportional to 39,931.10, 59,933.53 and 20,223.49

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Solution

The fourth proportional to 39,931.10, 59,933.53 and 20,223.49 is: 30,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.10 : 59,933.53 = 20,223.49 : x
  2. Step 2: Convert to fraction form
    39,931.10/59,933.53 = 20,223.49/x
  3. Step 3: Cross multiply
    39,931.10x = 59,933.53 × 20,223.49
  4. Step 4: Simplify right side
    39,931.10x = 1,212,065,144.62
  5. Step 5: Solve for x
    x = 1,212,065,144.62/39,931.10
  6. Step 6: Final answer
    x = 30,353.92

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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.