Home / 19,935.90-27,513.10-10,985.02

Finding the Fourth Proportional to 19,935.90, 27,513.10 and 10,985.02

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Solution

The fourth proportional to 19,935.90, 27,513.10 and 10,985.02 is: 15,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.90 : 27,513.10 = 10,985.02 : x
  2. Step 2: Convert to fraction form
    19,935.90/27,513.10 = 10,985.02/x
  3. Step 3: Cross multiply
    19,935.90x = 27,513.10 × 10,985.02
  4. Step 4: Simplify right side
    19,935.90x = 302,231,898.71
  5. Step 5: Solve for x
    x = 302,231,898.71/19,935.90
  6. Step 6: Final answer
    x = 15,160.18

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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.