Home / 25,715.91-35,491.38-14,389.74

Finding the Fourth Proportional to 25,715.91, 35,491.38 and 14,389.74

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Solution

The fourth proportional to 25,715.91, 35,491.38 and 14,389.74 is: 19,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.91 : 35,491.38 = 14,389.74 : x
  2. Step 2: Convert to fraction form
    25,715.91/35,491.38 = 14,389.74/x
  3. Step 3: Cross multiply
    25,715.91x = 35,491.38 × 14,389.74
  4. Step 4: Simplify right side
    25,715.91x = 510,711,730.44
  5. Step 5: Solve for x
    x = 510,711,730.44/25,715.91
  6. Step 6: Final answer
    x = 19,859.76

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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.