Home / 39,415.68-59,114.88-11,718.72

Finding the Fourth Proportional to 39,415.68, 59,114.88 and 11,718.72

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Solution

The fourth proportional to 39,415.68, 59,114.88 and 11,718.72 is: 17,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,415.68 : 59,114.88 = 11,718.72 : x
  2. Step 2: Convert to fraction form
    39,415.68/59,114.88 = 11,718.72/x
  3. Step 3: Cross multiply
    39,415.68x = 59,114.88 × 11,718.72
  4. Step 4: Simplify right side
    39,415.68x = 692,750,726.55
  5. Step 5: Solve for x
    x = 692,750,726.55/39,415.68
  6. Step 6: Final answer
    x = 17,575.51

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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.