Home / 39,563.20-59,345.40-12,909.07

Finding the Fourth Proportional to 39,563.20, 59,345.40 and 12,909.07

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Solution

The fourth proportional to 39,563.20, 59,345.40 and 12,909.07 is: 19,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,563.20 : 59,345.40 = 12,909.07 : x
  2. Step 2: Convert to fraction form
    39,563.20/59,345.40 = 12,909.07/x
  3. Step 3: Cross multiply
    39,563.20x = 59,345.40 × 12,909.07
  4. Step 4: Simplify right side
    39,563.20x = 766,093,922.78
  5. Step 5: Solve for x
    x = 766,093,922.78/39,563.20
  6. Step 6: Final answer
    x = 19,363.80

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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.