Home / 25,581.16-38,320.71-20,325.07

Finding the Fourth Proportional to 25,581.16, 38,320.71 and 20,325.07

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Solution

The fourth proportional to 25,581.16, 38,320.71 and 20,325.07 is: 30,447.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,581.16 : 38,320.71 = 20,325.07 : x
  2. Step 2: Convert to fraction form
    25,581.16/38,320.71 = 20,325.07/x
  3. Step 3: Cross multiply
    25,581.16x = 38,320.71 × 20,325.07
  4. Step 4: Simplify right side
    25,581.16x = 778,871,113.20
  5. Step 5: Solve for x
    x = 778,871,113.20/25,581.16
  6. Step 6: Final answer
    x = 30,447.06

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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.