Home / 25,228.02-34,814.16-15,801.78

Finding the Fourth Proportional to 25,228.02, 34,814.16 and 15,801.78

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Solution

The fourth proportional to 25,228.02, 34,814.16 and 15,801.78 is: 21,806.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,228.02 : 34,814.16 = 15,801.78 : x
  2. Step 2: Convert to fraction form
    25,228.02/34,814.16 = 15,801.78/x
  3. Step 3: Cross multiply
    25,228.02x = 34,814.16 × 15,801.78
  4. Step 4: Simplify right side
    25,228.02x = 550,125,697.20
  5. Step 5: Solve for x
    x = 550,125,697.20/25,228.02
  6. Step 6: Final answer
    x = 21,806.14

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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.