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Finding the Fourth Proportional to 19,959.52, 27,541.60 and 12,407.08

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Solution

The fourth proportional to 19,959.52, 27,541.60 and 12,407.08 is: 17,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.52 : 27,541.60 = 12,407.08 : x
  2. Step 2: Convert to fraction form
    19,959.52/27,541.60 = 12,407.08/x
  3. Step 3: Cross multiply
    19,959.52x = 27,541.60 × 12,407.08
  4. Step 4: Simplify right side
    19,959.52x = 341,710,834.53
  5. Step 5: Solve for x
    x = 341,710,834.53/19,959.52
  6. Step 6: Final answer
    x = 17,120.19

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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.