Home / 20,437.34-30,656.61-10,570.32

Finding the Fourth Proportional to 20,437.34, 30,656.61 and 10,570.32

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Solution

The fourth proportional to 20,437.34, 30,656.61 and 10,570.32 is: 15,855.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.34 : 30,656.61 = 10,570.32 : x
  2. Step 2: Convert to fraction form
    20,437.34/30,656.61 = 10,570.32/x
  3. Step 3: Cross multiply
    20,437.34x = 30,656.61 × 10,570.32
  4. Step 4: Simplify right side
    20,437.34x = 324,050,177.82
  5. Step 5: Solve for x
    x = 324,050,177.82/20,437.34
  6. Step 6: Final answer
    x = 15,855.79

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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.