Home / 19,643.66-27,117.52-12,574.18

Finding the Fourth Proportional to 19,643.66, 27,117.52 and 12,574.18

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Solution

The fourth proportional to 19,643.66, 27,117.52 and 12,574.18 is: 17,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.66 : 27,117.52 = 12,574.18 : x
  2. Step 2: Convert to fraction form
    19,643.66/27,117.52 = 12,574.18/x
  3. Step 3: Cross multiply
    19,643.66x = 27,117.52 × 12,574.18
  4. Step 4: Simplify right side
    19,643.66x = 340,980,577.63
  5. Step 5: Solve for x
    x = 340,980,577.63/19,643.66
  6. Step 6: Final answer
    x = 17,358.30

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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.