Home / 28,129.04-38,818.50-19,057.18

Finding the Fourth Proportional to 28,129.04, 38,818.50 and 19,057.18

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Solution

The fourth proportional to 28,129.04, 38,818.50 and 19,057.18 is: 26,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.04 : 38,818.50 = 19,057.18 : x
  2. Step 2: Convert to fraction form
    28,129.04/38,818.50 = 19,057.18/x
  3. Step 3: Cross multiply
    28,129.04x = 38,818.50 × 19,057.18
  4. Step 4: Simplify right side
    28,129.04x = 739,771,141.83
  5. Step 5: Solve for x
    x = 739,771,141.83/28,129.04
  6. Step 6: Final answer
    x = 26,299.20

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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.