Home / 28,127.68-38,814.96-15,552.16

Finding the Fourth Proportional to 28,127.68, 38,814.96 and 15,552.16

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Solution

The fourth proportional to 28,127.68, 38,814.96 and 15,552.16 is: 21,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.68 : 38,814.96 = 15,552.16 : x
  2. Step 2: Convert to fraction form
    28,127.68/38,814.96 = 15,552.16/x
  3. Step 3: Cross multiply
    28,127.68x = 38,814.96 × 15,552.16
  4. Step 4: Simplify right side
    28,127.68x = 603,656,468.31
  5. Step 5: Solve for x
    x = 603,656,468.31/28,127.68
  6. Step 6: Final answer
    x = 21,461.30

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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.