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Finding the Fourth Proportional to 35,379.65, 53,070.80 and 10,419.71

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Solution

The fourth proportional to 35,379.65, 53,070.80 and 10,419.71 is: 15,629.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,379.65 : 53,070.80 = 10,419.71 : x
  2. Step 2: Convert to fraction form
    35,379.65/53,070.80 = 10,419.71/x
  3. Step 3: Cross multiply
    35,379.65x = 53,070.80 × 10,419.71
  4. Step 4: Simplify right side
    35,379.65x = 552,982,345.47
  5. Step 5: Solve for x
    x = 552,982,345.47/35,379.65
  6. Step 6: Final answer
    x = 15,629.96

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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.