Home / 28,926.18-43,397.10-9,205.20

Finding the Fourth Proportional to 28,926.18, 43,397.10 and 9,205.20

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Solution

The fourth proportional to 28,926.18, 43,397.10 and 9,205.20 is: 13,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.18 : 43,397.10 = 9,205.20 : x
  2. Step 2: Convert to fraction form
    28,926.18/43,397.10 = 9,205.20/x
  3. Step 3: Cross multiply
    28,926.18x = 43,397.10 × 9,205.20
  4. Step 4: Simplify right side
    28,926.18x = 399,478,984.92
  5. Step 5: Solve for x
    x = 399,478,984.92/28,926.18
  6. Step 6: Final answer
    x = 13,810.29

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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.