Home / 39,822.40-59,739.04-13,520.08

Finding the Fourth Proportional to 39,822.40, 59,739.04 and 13,520.08

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Solution

The fourth proportional to 39,822.40, 59,739.04 and 13,520.08 is: 20,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,822.40 : 59,739.04 = 13,520.08 : x
  2. Step 2: Convert to fraction form
    39,822.40/59,739.04 = 13,520.08/x
  3. Step 3: Cross multiply
    39,822.40x = 59,739.04 × 13,520.08
  4. Step 4: Simplify right side
    39,822.40x = 807,676,599.92
  5. Step 5: Solve for x
    x = 807,676,599.92/39,822.40
  6. Step 6: Final answer
    x = 20,281.97

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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.