Home / 25,707.80-35,478.57-14,378.35

Finding the Fourth Proportional to 25,707.80, 35,478.57 and 14,378.35

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Solution

The fourth proportional to 25,707.80, 35,478.57 and 14,378.35 is: 19,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.80 : 35,478.57 = 14,378.35 : x
  2. Step 2: Convert to fraction form
    25,707.80/35,478.57 = 14,378.35/x
  3. Step 3: Cross multiply
    25,707.80x = 35,478.57 × 14,378.35
  4. Step 4: Simplify right side
    25,707.80x = 510,123,296.96
  5. Step 5: Solve for x
    x = 510,123,296.96/25,707.80
  6. Step 6: Final answer
    x = 19,843.13

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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.