Home / 28,051.68-38,712.30-16,117.20

Finding the Fourth Proportional to 28,051.68, 38,712.30 and 16,117.20

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Solution

The fourth proportional to 28,051.68, 38,712.30 and 16,117.20 is: 22,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.68 : 38,712.30 = 16,117.20 : x
  2. Step 2: Convert to fraction form
    28,051.68/38,712.30 = 16,117.20/x
  3. Step 3: Cross multiply
    28,051.68x = 38,712.30 × 16,117.20
  4. Step 4: Simplify right side
    28,051.68x = 623,933,881.56
  5. Step 5: Solve for x
    x = 623,933,881.56/28,051.68
  6. Step 6: Final answer
    x = 22,242.30

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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.