Home / 25,777.59-38,666.40-7,057.78

Finding the Fourth Proportional to 25,777.59, 38,666.40 and 7,057.78

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Solution

The fourth proportional to 25,777.59, 38,666.40 and 7,057.78 is: 10,586.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,777.59 : 38,666.40 = 7,057.78 : x
  2. Step 2: Convert to fraction form
    25,777.59/38,666.40 = 7,057.78/x
  3. Step 3: Cross multiply
    25,777.59x = 38,666.40 × 7,057.78
  4. Step 4: Simplify right side
    25,777.59x = 272,898,821.46
  5. Step 5: Solve for x
    x = 272,898,821.46/25,777.59
  6. Step 6: Final answer
    x = 10,586.67

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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.