Home / 28,462.52-39,278.18-15,887.16

Finding the Fourth Proportional to 28,462.52, 39,278.18 and 15,887.16

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Solution

The fourth proportional to 28,462.52, 39,278.18 and 15,887.16 is: 21,924.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.52 : 39,278.18 = 15,887.16 : x
  2. Step 2: Convert to fraction form
    28,462.52/39,278.18 = 15,887.16/x
  3. Step 3: Cross multiply
    28,462.52x = 39,278.18 × 15,887.16
  4. Step 4: Simplify right side
    28,462.52x = 624,018,730.17
  5. Step 5: Solve for x
    x = 624,018,730.17/28,462.52
  6. Step 6: Final answer
    x = 21,924.23

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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.