Home / 19,935.12-27,510.64-10,982.64

Finding the Fourth Proportional to 19,935.12, 27,510.64 and 10,982.64

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Solution

The fourth proportional to 19,935.12, 27,510.64 and 10,982.64 is: 15,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.12 : 27,510.64 = 10,982.64 : x
  2. Step 2: Convert to fraction form
    19,935.12/27,510.64 = 10,982.64/x
  3. Step 3: Cross multiply
    19,935.12x = 27,510.64 × 10,982.64
  4. Step 4: Simplify right side
    19,935.12x = 302,139,455.29
  5. Step 5: Solve for x
    x = 302,139,455.29/19,935.12
  6. Step 6: Final answer
    x = 15,156.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.