Home / 19,051.81-28,560.70-9,686.59

Finding the Fourth Proportional to 19,051.81, 28,560.70 and 9,686.59

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Solution

The fourth proportional to 19,051.81, 28,560.70 and 9,686.59 is: 14,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,051.81 : 28,560.70 = 9,686.59 : x
  2. Step 2: Convert to fraction form
    19,051.81/28,560.70 = 9,686.59/x
  3. Step 3: Cross multiply
    19,051.81x = 28,560.70 × 9,686.59
  4. Step 4: Simplify right side
    19,051.81x = 276,655,731.72
  5. Step 5: Solve for x
    x = 276,655,731.72/19,051.81
  6. Step 6: Final answer
    x = 14,521.23

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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.