Home / 31,461.55-47,199.63-10,400.32

Finding the Fourth Proportional to 31,461.55, 47,199.63 and 10,400.32

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Solution

The fourth proportional to 31,461.55, 47,199.63 and 10,400.32 is: 15,602.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.55 : 47,199.63 = 10,400.32 : x
  2. Step 2: Convert to fraction form
    31,461.55/47,199.63 = 10,400.32/x
  3. Step 3: Cross multiply
    31,461.55x = 47,199.63 × 10,400.32
  4. Step 4: Simplify right side
    31,461.55x = 490,890,967.88
  5. Step 5: Solve for x
    x = 490,890,967.88/31,461.55
  6. Step 6: Final answer
    x = 15,602.89

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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.