Home / 28,530.77-39,373.29-15,610.82

Finding the Fourth Proportional to 28,530.77, 39,373.29 and 15,610.82

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Solution

The fourth proportional to 28,530.77, 39,373.29 and 15,610.82 is: 21,543.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.77 : 39,373.29 = 15,610.82 : x
  2. Step 2: Convert to fraction form
    28,530.77/39,373.29 = 15,610.82/x
  3. Step 3: Cross multiply
    28,530.77x = 39,373.29 × 15,610.82
  4. Step 4: Simplify right side
    28,530.77x = 614,649,146.13
  5. Step 5: Solve for x
    x = 614,649,146.13/28,530.77
  6. Step 6: Final answer
    x = 21,543.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.