Home / 25,756.65-35,506.76-21,272.49

Finding the Fourth Proportional to 25,756.65, 35,506.76 and 21,272.49

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Solution

The fourth proportional to 25,756.65, 35,506.76 and 21,272.49 is: 29,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,756.65 : 35,506.76 = 21,272.49 : x
  2. Step 2: Convert to fraction form
    25,756.65/35,506.76 = 21,272.49/x
  3. Step 3: Cross multiply
    25,756.65x = 35,506.76 × 21,272.49
  4. Step 4: Simplify right side
    25,756.65x = 755,317,090.67
  5. Step 5: Solve for x
    x = 755,317,090.67/25,756.65
  6. Step 6: Final answer
    x = 29,325.13

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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.