Home / 25,688.74-35,451.80-15,615.53

Finding the Fourth Proportional to 25,688.74, 35,451.80 and 15,615.53

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Solution

The fourth proportional to 25,688.74, 35,451.80 and 15,615.53 is: 21,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688.74 : 35,451.80 = 15,615.53 : x
  2. Step 2: Convert to fraction form
    25,688.74/35,451.80 = 15,615.53/x
  3. Step 3: Cross multiply
    25,688.74x = 35,451.80 × 15,615.53
  4. Step 4: Simplify right side
    25,688.74x = 553,598,508.23
  5. Step 5: Solve for x
    x = 553,598,508.23/25,688.74
  6. Step 6: Final answer
    x = 21,550.24

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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.