Home / 35,543.40-53,315.10-20,744.70

Finding the Fourth Proportional to 35,543.40, 53,315.10 and 20,744.70

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Solution

The fourth proportional to 35,543.40, 53,315.10 and 20,744.70 is: 31,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,543.40 : 53,315.10 = 20,744.70 : x
  2. Step 2: Convert to fraction form
    35,543.40/53,315.10 = 20,744.70/x
  3. Step 3: Cross multiply
    35,543.40x = 53,315.10 × 20,744.70
  4. Step 4: Simplify right side
    35,543.40x = 1,106,005,754.97
  5. Step 5: Solve for x
    x = 1,106,005,754.97/35,543.40
  6. Step 6: Final answer
    x = 31,117.05

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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.