Home / 19,811.51-27,339.93-10,859.35

Finding the Fourth Proportional to 19,811.51, 27,339.93 and 10,859.35

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Solution

The fourth proportional to 19,811.51, 27,339.93 and 10,859.35 is: 14,985.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.51 : 27,339.93 = 10,859.35 : x
  2. Step 2: Convert to fraction form
    19,811.51/27,339.93 = 10,859.35/x
  3. Step 3: Cross multiply
    19,811.51x = 27,339.93 × 10,859.35
  4. Step 4: Simplify right side
    19,811.51x = 296,893,868.85
  5. Step 5: Solve for x
    x = 296,893,868.85/19,811.51
  6. Step 6: Final answer
    x = 14,985.93

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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.