Home / 31,225.34-43,075.86-18,475.04

Finding the Fourth Proportional to 31,225.34, 43,075.86 and 18,475.04

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Solution

The fourth proportional to 31,225.34, 43,075.86 and 18,475.04 is: 25,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,225.34 : 43,075.86 = 18,475.04 : x
  2. Step 2: Convert to fraction form
    31,225.34/43,075.86 = 18,475.04/x
  3. Step 3: Cross multiply
    31,225.34x = 43,075.86 × 18,475.04
  4. Step 4: Simplify right side
    31,225.34x = 795,828,236.53
  5. Step 5: Solve for x
    x = 795,828,236.53/31,225.34
  6. Step 6: Final answer
    x = 25,486.62

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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.