Home / 31,075.28-42,909.18-25,333.64

Finding the Fourth Proportional to 31,075.28, 42,909.18 and 25,333.64

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Solution

The fourth proportional to 31,075.28, 42,909.18 and 25,333.64 is: 34,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,075.28 : 42,909.18 = 25,333.64 : x
  2. Step 2: Convert to fraction form
    31,075.28/42,909.18 = 25,333.64/x
  3. Step 3: Cross multiply
    31,075.28x = 42,909.18 × 25,333.64
  4. Step 4: Simplify right side
    31,075.28x = 1,087,045,570.18
  5. Step 5: Solve for x
    x = 1,087,045,570.18/31,075.28
  6. Step 6: Final answer
    x = 34,981.04

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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.