Home / 22,038.04-30,412.58-13,090

Finding the Fourth Proportional to 22,038.04, 30,412.58 and 13,090

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Solution

The fourth proportional to 22,038.04, 30,412.58 and 13,090 is: 18,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,038.04 : 30,412.58 = 13,090 : x
  2. Step 2: Convert to fraction form
    22,038.04/30,412.58 = 13,090/x
  3. Step 3: Cross multiply
    22,038.04x = 30,412.58 × 13,090
  4. Step 4: Simplify right side
    22,038.04x = 398,100,672.20
  5. Step 5: Solve for x
    x = 398,100,672.20/22,038.04
  6. Step 6: Final answer
    x = 18,064.25

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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.