Home / 19,828.78-27,364.10-10,875.76

Finding the Fourth Proportional to 19,828.78, 27,364.10 and 10,875.76

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Solution

The fourth proportional to 19,828.78, 27,364.10 and 10,875.76 is: 15,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.78 : 27,364.10 = 10,875.76 : x
  2. Step 2: Convert to fraction form
    19,828.78/27,364.10 = 10,875.76/x
  3. Step 3: Cross multiply
    19,828.78x = 27,364.10 × 10,875.76
  4. Step 4: Simplify right side
    19,828.78x = 297,605,384.22
  5. Step 5: Solve for x
    x = 297,605,384.22/19,828.78
  6. Step 6: Final answer
    x = 15,008.76

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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.