Home / 28,186.83-38,888.34-16,249.91

Finding the Fourth Proportional to 28,186.83, 38,888.34 and 16,249.91

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Solution

The fourth proportional to 28,186.83, 38,888.34 and 16,249.91 is: 22,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.83 : 38,888.34 = 16,249.91 : x
  2. Step 2: Convert to fraction form
    28,186.83/38,888.34 = 16,249.91/x
  3. Step 3: Cross multiply
    28,186.83x = 38,888.34 × 16,249.91
  4. Step 4: Simplify right side
    28,186.83x = 631,931,830.61
  5. Step 5: Solve for x
    x = 631,931,830.61/28,186.83
  6. Step 6: Final answer
    x = 22,419.40

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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.