Home / 22,280.34-30,742.08-13,208.57

Finding the Fourth Proportional to 22,280.34, 30,742.08 and 13,208.57

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Solution

The fourth proportional to 22,280.34, 30,742.08 and 13,208.57 is: 18,224.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.34 : 30,742.08 = 13,208.57 : x
  2. Step 2: Convert to fraction form
    22,280.34/30,742.08 = 13,208.57/x
  3. Step 3: Cross multiply
    22,280.34x = 30,742.08 × 13,208.57
  4. Step 4: Simplify right side
    22,280.34x = 406,058,827.67
  5. Step 5: Solve for x
    x = 406,058,827.67/22,280.34
  6. Step 6: Final answer
    x = 18,224.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.