Home / 25,210.24-34,789.64-15,784

Finding the Fourth Proportional to 25,210.24, 34,789.64 and 15,784

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Solution

The fourth proportional to 25,210.24, 34,789.64 and 15,784 is: 21,781.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,210.24 : 34,789.64 = 15,784 : x
  2. Step 2: Convert to fraction form
    25,210.24/34,789.64 = 15,784/x
  3. Step 3: Cross multiply
    25,210.24x = 34,789.64 × 15,784
  4. Step 4: Simplify right side
    25,210.24x = 549,119,677.76
  5. Step 5: Solve for x
    x = 549,119,677.76/25,210.24
  6. Step 6: Final answer
    x = 21,781.61

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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.