Home / 19,876.89-27,430.76-10,924.71

Finding the Fourth Proportional to 19,876.89, 27,430.76 and 10,924.71

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Solution

The fourth proportional to 19,876.89, 27,430.76 and 10,924.71 is: 15,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.89 : 27,430.76 = 10,924.71 : x
  2. Step 2: Convert to fraction form
    19,876.89/27,430.76 = 10,924.71/x
  3. Step 3: Cross multiply
    19,876.89x = 27,430.76 × 10,924.71
  4. Step 4: Simplify right side
    19,876.89x = 299,672,960.93
  5. Step 5: Solve for x
    x = 299,672,960.93/19,876.89
  6. Step 6: Final answer
    x = 15,076.45

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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.