Home / 25,315.32-34,920.54-15,236.76

Finding the Fourth Proportional to 25,315.32, 34,920.54 and 15,236.76

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Solution

The fourth proportional to 25,315.32, 34,920.54 and 15,236.76 is: 21,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,315.32 : 34,920.54 = 15,236.76 : x
  2. Step 2: Convert to fraction form
    25,315.32/34,920.54 = 15,236.76/x
  3. Step 3: Cross multiply
    25,315.32x = 34,920.54 × 15,236.76
  4. Step 4: Simplify right side
    25,315.32x = 532,075,887.05
  5. Step 5: Solve for x
    x = 532,075,887.05/25,315.32
  6. Step 6: Final answer
    x = 21,017.94

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Double scale
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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.