Home / 25,126.92-37,730.70-21,256.20

Finding the Fourth Proportional to 25,126.92, 37,730.70 and 21,256.20

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Solution

The fourth proportional to 25,126.92, 37,730.70 and 21,256.20 is: 31,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,126.92 : 37,730.70 = 21,256.20 : x
  2. Step 2: Convert to fraction form
    25,126.92/37,730.70 = 21,256.20/x
  3. Step 3: Cross multiply
    25,126.92x = 37,730.70 × 21,256.20
  4. Step 4: Simplify right side
    25,126.92x = 802,011,305.34
  5. Step 5: Solve for x
    x = 802,011,305.34/25,126.92
  6. Step 6: Final answer
    x = 31,918.41

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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.