Home / 30,812.42-42,528.12-25,767.88

Finding the Fourth Proportional to 30,812.42, 42,528.12 and 25,767.88

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Solution

The fourth proportional to 30,812.42, 42,528.12 and 25,767.88 is: 35,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.42 : 42,528.12 = 25,767.88 : x
  2. Step 2: Convert to fraction form
    30,812.42/42,528.12 = 25,767.88/x
  3. Step 3: Cross multiply
    30,812.42x = 42,528.12 × 25,767.88
  4. Step 4: Simplify right side
    30,812.42x = 1,095,859,492.79
  5. Step 5: Solve for x
    x = 1,095,859,492.79/30,812.42
  6. Step 6: Final answer
    x = 35,565.51

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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.