Home / 19,859.51-27,412.27-12,785.92

Finding the Fourth Proportional to 19,859.51, 27,412.27 and 12,785.92

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Solution

The fourth proportional to 19,859.51, 27,412.27 and 12,785.92 is: 17,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.51 : 27,412.27 = 12,785.92 : x
  2. Step 2: Convert to fraction form
    19,859.51/27,412.27 = 12,785.92/x
  3. Step 3: Cross multiply
    19,859.51x = 27,412.27 × 12,785.92
  4. Step 4: Simplify right side
    19,859.51x = 350,490,990.74
  5. Step 5: Solve for x
    x = 350,490,990.74/19,859.51
  6. Step 6: Final answer
    x = 17,648.52

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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.