Home / 28,051.76-38,712.24-16,117.40

Finding the Fourth Proportional to 28,051.76, 38,712.24 and 16,117.40

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Solution

The fourth proportional to 28,051.76, 38,712.24 and 16,117.40 is: 22,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.76 : 38,712.24 = 16,117.40 : x
  2. Step 2: Convert to fraction form
    28,051.76/38,712.24 = 16,117.40/x
  3. Step 3: Cross multiply
    28,051.76x = 38,712.24 × 16,117.40
  4. Step 4: Simplify right side
    28,051.76x = 623,940,656.98
  5. Step 5: Solve for x
    x = 623,940,656.98/28,051.76
  6. Step 6: Final answer
    x = 22,242.48

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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.