Home / 39,089.94-58,622.60-12,788.55

Finding the Fourth Proportional to 39,089.94, 58,622.60 and 12,788.55

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Solution

The fourth proportional to 39,089.94, 58,622.60 and 12,788.55 is: 19,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,089.94 : 58,622.60 = 12,788.55 : x
  2. Step 2: Convert to fraction form
    39,089.94/58,622.60 = 12,788.55/x
  3. Step 3: Cross multiply
    39,089.94x = 58,622.60 × 12,788.55
  4. Step 4: Simplify right side
    39,089.94x = 749,697,987.29
  5. Step 5: Solve for x
    x = 749,697,987.29/39,089.94
  6. Step 6: Final answer
    x = 19,178.80

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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.