Home / 35,715.20-53,574.08-13,530.20

Finding the Fourth Proportional to 35,715.20, 53,574.08 and 13,530.20

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Solution

The fourth proportional to 35,715.20, 53,574.08 and 13,530.20 is: 20,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,715.20 : 53,574.08 = 13,530.20 : x
  2. Step 2: Convert to fraction form
    35,715.20/53,574.08 = 13,530.20/x
  3. Step 3: Cross multiply
    35,715.20x = 53,574.08 × 13,530.20
  4. Step 4: Simplify right side
    35,715.20x = 724,867,681.69
  5. Step 5: Solve for x
    x = 724,867,681.69/35,715.20
  6. Step 6: Final answer
    x = 20,295.78

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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.