Home / 19,001.58-28,502.40-5,151.66

Finding the Fourth Proportional to 19,001.58, 28,502.40 and 5,151.66

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Solution

The fourth proportional to 19,001.58, 28,502.40 and 5,151.66 is: 7,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.58 : 28,502.40 = 5,151.66 : x
  2. Step 2: Convert to fraction form
    19,001.58/28,502.40 = 5,151.66/x
  3. Step 3: Cross multiply
    19,001.58x = 28,502.40 × 5,151.66
  4. Step 4: Simplify right side
    19,001.58x = 146,834,673.98
  5. Step 5: Solve for x
    x = 146,834,673.98/19,001.58
  6. Step 6: Final answer
    x = 7,727.50

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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.