Home / 25,705.86-35,478.11-15,637.46

Finding the Fourth Proportional to 25,705.86, 35,478.11 and 15,637.46

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Solution

The fourth proportional to 25,705.86, 35,478.11 and 15,637.46 is: 21,582.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.86 : 35,478.11 = 15,637.46 : x
  2. Step 2: Convert to fraction form
    25,705.86/35,478.11 = 15,637.46/x
  3. Step 3: Cross multiply
    25,705.86x = 35,478.11 × 15,637.46
  4. Step 4: Simplify right side
    25,705.86x = 554,787,447.81
  5. Step 5: Solve for x
    x = 554,787,447.81/25,705.86
  6. Step 6: Final answer
    x = 21,582.14

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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.