Home / 28,130.08-38,818.56-16,191.76

Finding the Fourth Proportional to 28,130.08, 38,818.56 and 16,191.76

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Solution

The fourth proportional to 28,130.08, 38,818.56 and 16,191.76 is: 22,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.08 : 38,818.56 = 16,191.76 : x
  2. Step 2: Convert to fraction form
    28,130.08/38,818.56 = 16,191.76/x
  3. Step 3: Cross multiply
    28,130.08x = 38,818.56 × 16,191.76
  4. Step 4: Simplify right side
    28,130.08x = 628,540,807.07
  5. Step 5: Solve for x
    x = 628,540,807.07/28,130.08
  6. Step 6: Final answer
    x = 22,344.08

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Find fourth proportional to 28,131.08, 38,819.94 and 16,192.76
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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.