Home / 28,266.65-42,397.89-11,400.80

Finding the Fourth Proportional to 28,266.65, 42,397.89 and 11,400.80

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Solution

The fourth proportional to 28,266.65, 42,397.89 and 11,400.80 is: 17,100.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.65 : 42,397.89 = 11,400.80 : x
  2. Step 2: Convert to fraction form
    28,266.65/42,397.89 = 11,400.80/x
  3. Step 3: Cross multiply
    28,266.65x = 42,397.89 × 11,400.80
  4. Step 4: Simplify right side
    28,266.65x = 483,369,652.32
  5. Step 5: Solve for x
    x = 483,369,652.32/28,266.65
  6. Step 6: Final answer
    x = 17,100.35

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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.