Home / 35,501.10-53,231.40-13,315.20

Finding the Fourth Proportional to 35,501.10, 53,231.40 and 13,315.20

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Solution

The fourth proportional to 35,501.10, 53,231.40 and 13,315.20 is: 19,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,501.10 : 53,231.40 = 13,315.20 : x
  2. Step 2: Convert to fraction form
    35,501.10/53,231.40 = 13,315.20/x
  3. Step 3: Cross multiply
    35,501.10x = 53,231.40 × 13,315.20
  4. Step 4: Simplify right side
    35,501.10x = 708,786,737.28
  5. Step 5: Solve for x
    x = 708,786,737.28/35,501.10
  6. Step 6: Final answer
    x = 19,965.20

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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.