Home / 19,883.18-27,439.07-10,931.51

Finding the Fourth Proportional to 19,883.18, 27,439.07 and 10,931.51

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Solution

The fourth proportional to 19,883.18, 27,439.07 and 10,931.51 is: 15,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.18 : 27,439.07 = 10,931.51 : x
  2. Step 2: Convert to fraction form
    19,883.18/27,439.07 = 10,931.51/x
  3. Step 3: Cross multiply
    19,883.18x = 27,439.07 × 10,931.51
  4. Step 4: Simplify right side
    19,883.18x = 299,950,276.24
  5. Step 5: Solve for x
    x = 299,950,276.24/19,883.18
  6. Step 6: Final answer
    x = 15,085.63

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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.