Home / 25,383.02-35,031.84-15,316.90

Finding the Fourth Proportional to 25,383.02, 35,031.84 and 15,316.90

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Solution

The fourth proportional to 25,383.02, 35,031.84 and 15,316.90 is: 21,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,383.02 : 35,031.84 = 15,316.90 : x
  2. Step 2: Convert to fraction form
    25,383.02/35,031.84 = 15,316.90/x
  3. Step 3: Cross multiply
    25,383.02x = 35,031.84 × 15,316.90
  4. Step 4: Simplify right side
    25,383.02x = 536,579,190.10
  5. Step 5: Solve for x
    x = 536,579,190.10/25,383.02
  6. Step 6: Final answer
    x = 21,139.30

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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.