Home / 31,577.79-47,341.55-18,235.64

Finding the Fourth Proportional to 31,577.79, 47,341.55 and 18,235.64

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Solution

The fourth proportional to 31,577.79, 47,341.55 and 18,235.64 is: 27,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,577.79 : 47,341.55 = 18,235.64 : x
  2. Step 2: Convert to fraction form
    31,577.79/47,341.55 = 18,235.64/x
  3. Step 3: Cross multiply
    31,577.79x = 47,341.55 × 18,235.64
  4. Step 4: Simplify right side
    31,577.79x = 863,303,271.72
  5. Step 5: Solve for x
    x = 863,303,271.72/31,577.79
  6. Step 6: Final answer
    x = 27,338.94

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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.