Home / 28,946.79-43,398.29-9,213.98

Finding the Fourth Proportional to 28,946.79, 43,398.29 and 9,213.98

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Solution

The fourth proportional to 28,946.79, 43,398.29 and 9,213.98 is: 13,813.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.79 : 43,398.29 = 9,213.98 : x
  2. Step 2: Convert to fraction form
    28,946.79/43,398.29 = 9,213.98/x
  3. Step 3: Cross multiply
    28,946.79x = 43,398.29 × 9,213.98
  4. Step 4: Simplify right side
    28,946.79x = 399,870,713.03
  5. Step 5: Solve for x
    x = 399,870,713.03/28,946.79
  6. Step 6: Final answer
    x = 13,813.99

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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.