Home / 39,465.90-59,199.48-13,170.78

Finding the Fourth Proportional to 39,465.90, 59,199.48 and 13,170.78

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Solution

The fourth proportional to 39,465.90, 59,199.48 and 13,170.78 is: 19,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,465.90 : 59,199.48 = 13,170.78 : x
  2. Step 2: Convert to fraction form
    39,465.90/59,199.48 = 13,170.78/x
  3. Step 3: Cross multiply
    39,465.90x = 59,199.48 × 13,170.78
  4. Step 4: Simplify right side
    39,465.90x = 779,703,327.19
  5. Step 5: Solve for x
    x = 779,703,327.19/39,465.90
  6. Step 6: Final answer
    x = 19,756.38

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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.