Home / 19,210.56-28,807.68-7,521.92

Finding the Fourth Proportional to 19,210.56, 28,807.68 and 7,521.92

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Solution

The fourth proportional to 19,210.56, 28,807.68 and 7,521.92 is: 11,279.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.56 : 28,807.68 = 7,521.92 : x
  2. Step 2: Convert to fraction form
    19,210.56/28,807.68 = 7,521.92/x
  3. Step 3: Cross multiply
    19,210.56x = 28,807.68 × 7,521.92
  4. Step 4: Simplify right side
    19,210.56x = 216,689,064.35
  5. Step 5: Solve for x
    x = 216,689,064.35/19,210.56
  6. Step 6: Final answer
    x = 11,279.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.