Home / 21,030.72-31,553.28-9,352.16

Finding the Fourth Proportional to 21,030.72, 31,553.28 and 9,352.16

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Solution

The fourth proportional to 21,030.72, 31,553.28 and 9,352.16 is: 14,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.72 : 31,553.28 = 9,352.16 : x
  2. Step 2: Convert to fraction form
    21,030.72/31,553.28 = 9,352.16/x
  3. Step 3: Cross multiply
    21,030.72x = 31,553.28 × 9,352.16
  4. Step 4: Simplify right side
    21,030.72x = 295,091,323.08
  5. Step 5: Solve for x
    x = 295,091,323.08/21,030.72
  6. Step 6: Final answer
    x = 14,031.44

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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.