Home / 35,418.72-53,095.20-15,686.72

Finding the Fourth Proportional to 35,418.72, 53,095.20 and 15,686.72

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Solution

The fourth proportional to 35,418.72, 53,095.20 and 15,686.72 is: 23,515.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,418.72 : 53,095.20 = 15,686.72 : x
  2. Step 2: Convert to fraction form
    35,418.72/53,095.20 = 15,686.72/x
  3. Step 3: Cross multiply
    35,418.72x = 53,095.20 × 15,686.72
  4. Step 4: Simplify right side
    35,418.72x = 832,889,535.74
  5. Step 5: Solve for x
    x = 832,889,535.74/35,418.72
  6. Step 6: Final answer
    x = 23,515.52

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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.