Home / 25,649.61-35,416.49-19,671.81

Finding the Fourth Proportional to 25,649.61, 35,416.49 and 19,671.81

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Solution

The fourth proportional to 25,649.61, 35,416.49 and 19,671.81 is: 27,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,649.61 : 35,416.49 = 19,671.81 : x
  2. Step 2: Convert to fraction form
    25,649.61/35,416.49 = 19,671.81/x
  3. Step 3: Cross multiply
    25,649.61x = 35,416.49 × 19,671.81
  4. Step 4: Simplify right side
    25,649.61x = 696,706,363.79
  5. Step 5: Solve for x
    x = 696,706,363.79/25,649.61
  6. Step 6: Final answer
    x = 27,162.45

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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.