Home / 21,432.76-29,577.54-12,935.32

Finding the Fourth Proportional to 21,432.76, 29,577.54 and 12,935.32

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Solution

The fourth proportional to 21,432.76, 29,577.54 and 12,935.32 is: 17,850.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.76 : 29,577.54 = 12,935.32 : x
  2. Step 2: Convert to fraction form
    21,432.76/29,577.54 = 12,935.32/x
  3. Step 3: Cross multiply
    21,432.76x = 29,577.54 × 12,935.32
  4. Step 4: Simplify right side
    21,432.76x = 382,594,944.71
  5. Step 5: Solve for x
    x = 382,594,944.71/21,432.76
  6. Step 6: Final answer
    x = 17,850.94

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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.