Home / 25,881.20-35,688.06-19,899.68

Finding the Fourth Proportional to 25,881.20, 35,688.06 and 19,899.68

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Solution

The fourth proportional to 25,881.20, 35,688.06 and 19,899.68 is: 27,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,881.20 : 35,688.06 = 19,899.68 : x
  2. Step 2: Convert to fraction form
    25,881.20/35,688.06 = 19,899.68/x
  3. Step 3: Cross multiply
    25,881.20x = 35,688.06 × 19,899.68
  4. Step 4: Simplify right side
    25,881.20x = 710,180,973.82
  5. Step 5: Solve for x
    x = 710,180,973.82/25,881.20
  6. Step 6: Final answer
    x = 27,440.03

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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.