Home / 25,315.95-34,935.33-13,985.20

Finding the Fourth Proportional to 25,315.95, 34,935.33 and 13,985.20

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Solution

The fourth proportional to 25,315.95, 34,935.33 and 13,985.20 is: 19,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,315.95 : 34,935.33 = 13,985.20 : x
  2. Step 2: Convert to fraction form
    25,315.95/34,935.33 = 13,985.20/x
  3. Step 3: Cross multiply
    25,315.95x = 34,935.33 × 13,985.20
  4. Step 4: Simplify right side
    25,315.95x = 488,577,577.12
  5. Step 5: Solve for x
    x = 488,577,577.12/25,315.95
  6. Step 6: Final answer
    x = 19,299.20

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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.