Home / 23,001.72-31,742.99-12,931.08

Finding the Fourth Proportional to 23,001.72, 31,742.99 and 12,931.08

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Solution

The fourth proportional to 23,001.72, 31,742.99 and 12,931.08 is: 17,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,001.72 : 31,742.99 = 12,931.08 : x
  2. Step 2: Convert to fraction form
    23,001.72/31,742.99 = 12,931.08/x
  3. Step 3: Cross multiply
    23,001.72x = 31,742.99 × 12,931.08
  4. Step 4: Simplify right side
    23,001.72x = 410,471,143.13
  5. Step 5: Solve for x
    x = 410,471,143.13/23,001.72
  6. Step 6: Final answer
    x = 17,845.24

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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.