Home / 35,681.16-53,508.81-11,981.61

Finding the Fourth Proportional to 35,681.16, 53,508.81 and 11,981.61

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Solution

The fourth proportional to 35,681.16, 53,508.81 and 11,981.61 is: 17,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,681.16 : 53,508.81 = 11,981.61 : x
  2. Step 2: Convert to fraction form
    35,681.16/53,508.81 = 11,981.61/x
  3. Step 3: Cross multiply
    35,681.16x = 53,508.81 × 11,981.61
  4. Step 4: Simplify right side
    35,681.16x = 641,121,871.69
  5. Step 5: Solve for x
    x = 641,121,871.69/35,681.16
  6. Step 6: Final answer
    x = 17,968.08

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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.