Home / 21,266.72-31,888.08-10,176.08

Finding the Fourth Proportional to 21,266.72, 31,888.08 and 10,176.08

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Solution

The fourth proportional to 21,266.72, 31,888.08 and 10,176.08 is: 15,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.72 : 31,888.08 = 10,176.08 : x
  2. Step 2: Convert to fraction form
    21,266.72/31,888.08 = 10,176.08/x
  3. Step 3: Cross multiply
    21,266.72x = 31,888.08 × 10,176.08
  4. Step 4: Simplify right side
    21,266.72x = 324,495,653.13
  5. Step 5: Solve for x
    x = 324,495,653.13/21,266.72
  6. Step 6: Final answer
    x = 15,258.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.