Home / 22,509.18-31,033.80-15,423.30

Finding the Fourth Proportional to 22,509.18, 31,033.80 and 15,423.30

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Solution

The fourth proportional to 22,509.18, 31,033.80 and 15,423.30 is: 21,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,509.18 : 31,033.80 = 15,423.30 : x
  2. Step 2: Convert to fraction form
    22,509.18/31,033.80 = 15,423.30/x
  3. Step 3: Cross multiply
    22,509.18x = 31,033.80 × 15,423.30
  4. Step 4: Simplify right side
    22,509.18x = 478,643,607.54
  5. Step 5: Solve for x
    x = 478,643,607.54/22,509.18
  6. Step 6: Final answer
    x = 21,264.37

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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.