Home / 22,657.88-31,268.75-12,587.08

Finding the Fourth Proportional to 22,657.88, 31,268.75 and 12,587.08

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Solution

The fourth proportional to 22,657.88, 31,268.75 and 12,587.08 is: 17,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,657.88 : 31,268.75 = 12,587.08 : x
  2. Step 2: Convert to fraction form
    22,657.88/31,268.75 = 12,587.08/x
  3. Step 3: Cross multiply
    22,657.88x = 31,268.75 × 12,587.08
  4. Step 4: Simplify right side
    22,657.88x = 393,582,194.81
  5. Step 5: Solve for x
    x = 393,582,194.81/22,657.88
  6. Step 6: Final answer
    x = 17,370.66

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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.