Home / 22,269.02-30,731.81-12,710.21

Finding the Fourth Proportional to 22,269.02, 30,731.81 and 12,710.21

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Solution

The fourth proportional to 22,269.02, 30,731.81 and 12,710.21 is: 17,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.02 : 30,731.81 = 12,710.21 : x
  2. Step 2: Convert to fraction form
    22,269.02/30,731.81 = 12,710.21/x
  3. Step 3: Cross multiply
    22,269.02x = 30,731.81 × 12,710.21
  4. Step 4: Simplify right side
    22,269.02x = 390,607,541.57
  5. Step 5: Solve for x
    x = 390,607,541.57/22,269.02
  6. Step 6: Final answer
    x = 17,540.40

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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.