Home / 19,038.42-28,569.48-9,178.71

Finding the Fourth Proportional to 19,038.42, 28,569.48 and 9,178.71

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Solution

The fourth proportional to 19,038.42, 28,569.48 and 9,178.71 is: 13,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.42 : 28,569.48 = 9,178.71 : x
  2. Step 2: Convert to fraction form
    19,038.42/28,569.48 = 9,178.71/x
  3. Step 3: Cross multiply
    19,038.42x = 28,569.48 × 9,178.71
  4. Step 4: Simplify right side
    19,038.42x = 262,230,971.77
  5. Step 5: Solve for x
    x = 262,230,971.77/19,038.42
  6. Step 6: Final answer
    x = 13,773.78

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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.