Home / 25,685.24-35,445.87-15,075.05

Finding the Fourth Proportional to 25,685.24, 35,445.87 and 15,075.05

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Solution

The fourth proportional to 25,685.24, 35,445.87 and 15,075.05 is: 20,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.24 : 35,445.87 = 15,075.05 : x
  2. Step 2: Convert to fraction form
    25,685.24/35,445.87 = 15,075.05/x
  3. Step 3: Cross multiply
    25,685.24x = 35,445.87 × 15,075.05
  4. Step 4: Simplify right side
    25,685.24x = 534,348,085.31
  5. Step 5: Solve for x
    x = 534,348,085.31/25,685.24
  6. Step 6: Final answer
    x = 20,803.71

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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.