Home / 23,157.72-31,957.80-12,547.43

Finding the Fourth Proportional to 23,157.72, 31,957.80 and 12,547.43

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Solution

The fourth proportional to 23,157.72, 31,957.80 and 12,547.43 is: 17,315.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,157.72 : 31,957.80 = 12,547.43 : x
  2. Step 2: Convert to fraction form
    23,157.72/31,957.80 = 12,547.43/x
  3. Step 3: Cross multiply
    23,157.72x = 31,957.80 × 12,547.43
  4. Step 4: Simplify right side
    23,157.72x = 400,988,258.45
  5. Step 5: Solve for x
    x = 400,988,258.45/23,157.72
  6. Step 6: Final answer
    x = 17,315.53

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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.