Home / 28,400.52-39,186.14-17,066.20

Finding the Fourth Proportional to 28,400.52, 39,186.14 and 17,066.20

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Solution

The fourth proportional to 28,400.52, 39,186.14 and 17,066.20 is: 23,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.52 : 39,186.14 = 17,066.20 : x
  2. Step 2: Convert to fraction form
    28,400.52/39,186.14 = 17,066.20/x
  3. Step 3: Cross multiply
    28,400.52x = 39,186.14 × 17,066.20
  4. Step 4: Simplify right side
    28,400.52x = 668,758,502.47
  5. Step 5: Solve for x
    x = 668,758,502.47/28,400.52
  6. Step 6: Final answer
    x = 23,547.40

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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.