Home / 39,686.13-59,530.53-19,953.90

Finding the Fourth Proportional to 39,686.13, 59,530.53 and 19,953.90

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Solution

The fourth proportional to 39,686.13, 59,530.53 and 19,953.90 is: 29,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,686.13 : 59,530.53 = 19,953.90 : x
  2. Step 2: Convert to fraction form
    39,686.13/59,530.53 = 19,953.90/x
  3. Step 3: Cross multiply
    39,686.13x = 59,530.53 × 19,953.90
  4. Step 4: Simplify right side
    39,686.13x = 1,187,866,242.57
  5. Step 5: Solve for x
    x = 1,187,866,242.57/39,686.13
  6. Step 6: Final answer
    x = 29,931.52

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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.