Home / 25,709.35-35,478.65-14,378.71

Finding the Fourth Proportional to 25,709.35, 35,478.65 and 14,378.71

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Solution

The fourth proportional to 25,709.35, 35,478.65 and 14,378.71 is: 19,842.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,709.35 : 35,478.65 = 14,378.71 : x
  2. Step 2: Convert to fraction form
    25,709.35/35,478.65 = 14,378.71/x
  3. Step 3: Cross multiply
    25,709.35x = 35,478.65 × 14,378.71
  4. Step 4: Simplify right side
    25,709.35x = 510,137,166.79
  5. Step 5: Solve for x
    x = 510,137,166.79/25,709.35
  6. Step 6: Final answer
    x = 19,842.48

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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.