Home / 25,742.81-35,526.40-15,135.86

Finding the Fourth Proportional to 25,742.81, 35,526.40 and 15,135.86

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Solution

The fourth proportional to 25,742.81, 35,526.40 and 15,135.86 is: 20,888.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,742.81 : 35,526.40 = 15,135.86 : x
  2. Step 2: Convert to fraction form
    25,742.81/35,526.40 = 15,135.86/x
  3. Step 3: Cross multiply
    25,742.81x = 35,526.40 × 15,135.86
  4. Step 4: Simplify right side
    25,742.81x = 537,722,667.68
  5. Step 5: Solve for x
    x = 537,722,667.68/25,742.81
  6. Step 6: Final answer
    x = 20,888.26

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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.