Home / 39,720.05-59,580.03-10,137.89

Finding the Fourth Proportional to 39,720.05, 59,580.03 and 10,137.89

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Solution

The fourth proportional to 39,720.05, 59,580.03 and 10,137.89 is: 15,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.05 : 59,580.03 = 10,137.89 : x
  2. Step 2: Convert to fraction form
    39,720.05/59,580.03 = 10,137.89/x
  3. Step 3: Cross multiply
    39,720.05x = 59,580.03 × 10,137.89
  4. Step 4: Simplify right side
    39,720.05x = 604,015,790.34
  5. Step 5: Solve for x
    x = 604,015,790.34/39,720.05
  6. Step 6: Final answer
    x = 15,206.82

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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.