Home / 19,434.47-26,784.39-14,621.72

Finding the Fourth Proportional to 19,434.47, 26,784.39 and 14,621.72

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Solution

The fourth proportional to 19,434.47, 26,784.39 and 14,621.72 is: 20,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,434.47 : 26,784.39 = 14,621.72 : x
  2. Step 2: Convert to fraction form
    19,434.47/26,784.39 = 14,621.72/x
  3. Step 3: Cross multiply
    19,434.47x = 26,784.39 × 14,621.72
  4. Step 4: Simplify right side
    19,434.47x = 391,633,689.61
  5. Step 5: Solve for x
    x = 391,633,689.61/19,434.47
  6. Step 6: Final answer
    x = 20,151.50

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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.