Home / 45,002.40-67,484.16-13,830.36

Finding the Fourth Proportional to 45,002.40, 67,484.16 and 13,830.36

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Solution

The fourth proportional to 45,002.40, 67,484.16 and 13,830.36 is: 20,739.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,002.40 : 67,484.16 = 13,830.36 : x
  2. Step 2: Convert to fraction form
    45,002.40/67,484.16 = 13,830.36/x
  3. Step 3: Cross multiply
    45,002.40x = 67,484.16 × 13,830.36
  4. Step 4: Simplify right side
    45,002.40x = 933,330,227.10
  5. Step 5: Solve for x
    x = 933,330,227.10/45,002.40
  6. Step 6: Final answer
    x = 20,739.57

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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.