Home / 28,362.36-39,126.60-22,031.40

Finding the Fourth Proportional to 28,362.36, 39,126.60 and 22,031.40

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Solution

The fourth proportional to 28,362.36, 39,126.60 and 22,031.40 is: 30,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.36 : 39,126.60 = 22,031.40 : x
  2. Step 2: Convert to fraction form
    28,362.36/39,126.60 = 22,031.40/x
  3. Step 3: Cross multiply
    28,362.36x = 39,126.60 × 22,031.40
  4. Step 4: Simplify right side
    28,362.36x = 862,013,775.24
  5. Step 5: Solve for x
    x = 862,013,775.24/28,362.36
  6. Step 6: Final answer
    x = 30,392.88

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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.