Home / 35,669.45-53,508.28-20,878.50

Finding the Fourth Proportional to 35,669.45, 53,508.28 and 20,878.50

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Solution

The fourth proportional to 35,669.45, 53,508.28 and 20,878.50 is: 31,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,669.45 : 53,508.28 = 20,878.50 : x
  2. Step 2: Convert to fraction form
    35,669.45/53,508.28 = 20,878.50/x
  3. Step 3: Cross multiply
    35,669.45x = 53,508.28 × 20,878.50
  4. Step 4: Simplify right side
    35,669.45x = 1,117,172,510.60
  5. Step 5: Solve for x
    x = 1,117,172,510.60/35,669.45
  6. Step 6: Final answer
    x = 31,320.15

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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.