Home / 28,311.37-39,070.17-15,565.08

Finding the Fourth Proportional to 28,311.37, 39,070.17 and 15,565.08

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Solution

The fourth proportional to 28,311.37, 39,070.17 and 15,565.08 is: 21,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.37 : 39,070.17 = 15,565.08 : x
  2. Step 2: Convert to fraction form
    28,311.37/39,070.17 = 15,565.08/x
  3. Step 3: Cross multiply
    28,311.37x = 39,070.17 × 15,565.08
  4. Step 4: Simplify right side
    28,311.37x = 608,130,321.66
  5. Step 5: Solve for x
    x = 608,130,321.66/28,311.37
  6. Step 6: Final answer
    x = 21,480.07

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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.