Home / 25,931.07-35,784.59-15,320.48

Finding the Fourth Proportional to 25,931.07, 35,784.59 and 15,320.48

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Solution

The fourth proportional to 25,931.07, 35,784.59 and 15,320.48 is: 21,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,931.07 : 35,784.59 = 15,320.48 : x
  2. Step 2: Convert to fraction form
    25,931.07/35,784.59 = 15,320.48/x
  3. Step 3: Cross multiply
    25,931.07x = 35,784.59 × 15,320.48
  4. Step 4: Simplify right side
    25,931.07x = 548,236,839.88
  5. Step 5: Solve for x
    x = 548,236,839.88/25,931.07
  6. Step 6: Final answer
    x = 21,142.08

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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.