Home / 38,977.40-58,428.50-17,931.85

Finding the Fourth Proportional to 38,977.40, 58,428.50 and 17,931.85

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Solution

The fourth proportional to 38,977.40, 58,428.50 and 17,931.85 is: 26,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,977.40 : 58,428.50 = 17,931.85 : x
  2. Step 2: Convert to fraction form
    38,977.40/58,428.50 = 17,931.85/x
  3. Step 3: Cross multiply
    38,977.40x = 58,428.50 × 17,931.85
  4. Step 4: Simplify right side
    38,977.40x = 1,047,730,861.99
  5. Step 5: Solve for x
    x = 1,047,730,861.99/38,977.40
  6. Step 6: Final answer
    x = 26,880.47

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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.