Home / 25,868.16-38,810.88-10,281.60

Finding the Fourth Proportional to 25,868.16, 38,810.88 and 10,281.60

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Solution

The fourth proportional to 25,868.16, 38,810.88 and 10,281.60 is: 15,425.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,868.16 : 38,810.88 = 10,281.60 : x
  2. Step 2: Convert to fraction form
    25,868.16/38,810.88 = 10,281.60/x
  3. Step 3: Cross multiply
    25,868.16x = 38,810.88 × 10,281.60
  4. Step 4: Simplify right side
    25,868.16x = 399,037,943.81
  5. Step 5: Solve for x
    x = 399,037,943.81/25,868.16
  6. Step 6: Final answer
    x = 15,425.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.