Home / 25,315.78-37,984.60-9,729.76

Finding the Fourth Proportional to 25,315.78, 37,984.60 and 9,729.76

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Solution

The fourth proportional to 25,315.78, 37,984.60 and 9,729.76 is: 14,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,315.78 : 37,984.60 = 9,729.76 : x
  2. Step 2: Convert to fraction form
    25,315.78/37,984.60 = 9,729.76/x
  3. Step 3: Cross multiply
    25,315.78x = 37,984.60 × 9,729.76
  4. Step 4: Simplify right side
    25,315.78x = 369,581,041.70
  5. Step 5: Solve for x
    x = 369,581,041.70/25,315.78
  6. Step 6: Final answer
    x = 14,598.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.