Home / 39,618.06-59,403.69-13,315.74

Finding the Fourth Proportional to 39,618.06, 59,403.69 and 13,315.74

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Solution

The fourth proportional to 39,618.06, 59,403.69 and 13,315.74 is: 19,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,618.06 : 59,403.69 = 13,315.74 : x
  2. Step 2: Convert to fraction form
    39,618.06/59,403.69 = 13,315.74/x
  3. Step 3: Cross multiply
    39,618.06x = 59,403.69 × 13,315.74
  4. Step 4: Simplify right side
    39,618.06x = 791,004,091.08
  5. Step 5: Solve for x
    x = 791,004,091.08/39,618.06
  6. Step 6: Final answer
    x = 19,965.75

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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.