Home / 20,038.73-27,648.47-12,956.63

Finding the Fourth Proportional to 20,038.73, 27,648.47 and 12,956.63

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Solution

The fourth proportional to 20,038.73, 27,648.47 and 12,956.63 is: 17,876.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.73 : 27,648.47 = 12,956.63 : x
  2. Step 2: Convert to fraction form
    20,038.73/27,648.47 = 12,956.63/x
  3. Step 3: Cross multiply
    20,038.73x = 27,648.47 × 12,956.63
  4. Step 4: Simplify right side
    20,038.73x = 358,230,995.86
  5. Step 5: Solve for x
    x = 358,230,995.86/20,038.73
  6. Step 6: Final answer
    x = 17,876.93

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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.