Home / 22,659.30-31,269.35-12,587.45

Finding the Fourth Proportional to 22,659.30, 31,269.35 and 12,587.45

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Solution

The fourth proportional to 22,659.30, 31,269.35 and 12,587.45 is: 17,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.30 : 31,269.35 = 12,587.45 : x
  2. Step 2: Convert to fraction form
    22,659.30/31,269.35 = 12,587.45/x
  3. Step 3: Cross multiply
    22,659.30x = 31,269.35 × 12,587.45
  4. Step 4: Simplify right side
    22,659.30x = 393,601,160.37
  5. Step 5: Solve for x
    x = 393,601,160.37/22,659.30
  6. Step 6: Final answer
    x = 17,370.40

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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.