Home / 25,875.86-35,702.78-15,808.37

Finding the Fourth Proportional to 25,875.86, 35,702.78 and 15,808.37

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Solution

The fourth proportional to 25,875.86, 35,702.78 and 15,808.37 is: 21,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,875.86 : 35,702.78 = 15,808.37 : x
  2. Step 2: Convert to fraction form
    25,875.86/35,702.78 = 15,808.37/x
  3. Step 3: Cross multiply
    25,875.86x = 35,702.78 × 15,808.37
  4. Step 4: Simplify right side
    25,875.86x = 564,402,498.71
  5. Step 5: Solve for x
    x = 564,402,498.71/25,875.86
  6. Step 6: Final answer
    x = 21,811.94

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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.