Home / 22,503.06-31,053.60-12,431.32

Finding the Fourth Proportional to 22,503.06, 31,053.60 and 12,431.32

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Solution

The fourth proportional to 22,503.06, 31,053.60 and 12,431.32 is: 17,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,503.06 : 31,053.60 = 12,431.32 : x
  2. Step 2: Convert to fraction form
    22,503.06/31,053.60 = 12,431.32/x
  3. Step 3: Cross multiply
    22,503.06x = 31,053.60 × 12,431.32
  4. Step 4: Simplify right side
    22,503.06x = 386,037,238.75
  5. Step 5: Solve for x
    x = 386,037,238.75/22,503.06
  6. Step 6: Final answer
    x = 17,154.88

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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.