Home / 22,248.48-30,699.93-12,815.22

Finding the Fourth Proportional to 22,248.48, 30,699.93 and 12,815.22

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Solution

The fourth proportional to 22,248.48, 30,699.93 and 12,815.22 is: 17,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,248.48 : 30,699.93 = 12,815.22 : x
  2. Step 2: Convert to fraction form
    22,248.48/30,699.93 = 12,815.22/x
  3. Step 3: Cross multiply
    22,248.48x = 30,699.93 × 12,815.22
  4. Step 4: Simplify right side
    22,248.48x = 393,426,356.93
  5. Step 5: Solve for x
    x = 393,426,356.93/22,248.48
  6. Step 6: Final answer
    x = 17,683.29

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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.