Home / 20,437.17-30,640.22-10,570.16

Finding the Fourth Proportional to 20,437.17, 30,640.22 and 10,570.16

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Solution

The fourth proportional to 20,437.17, 30,640.22 and 10,570.16 is: 15,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.17 : 30,640.22 = 10,570.16 : x
  2. Step 2: Convert to fraction form
    20,437.17/30,640.22 = 10,570.16/x
  3. Step 3: Cross multiply
    20,437.17x = 30,640.22 × 10,570.16
  4. Step 4: Simplify right side
    20,437.17x = 323,871,821.78
  5. Step 5: Solve for x
    x = 323,871,821.78/20,437.17
  6. Step 6: Final answer
    x = 15,847.20

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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.