Home / 30,816.32-42,526.48-17,387.60

Finding the Fourth Proportional to 30,816.32, 42,526.48 and 17,387.60

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Solution

The fourth proportional to 30,816.32, 42,526.48 and 17,387.60 is: 23,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.32 : 42,526.48 = 17,387.60 : x
  2. Step 2: Convert to fraction form
    30,816.32/42,526.48 = 17,387.60/x
  3. Step 3: Cross multiply
    30,816.32x = 42,526.48 × 17,387.60
  4. Step 4: Simplify right side
    30,816.32x = 739,433,423.65
  5. Step 5: Solve for x
    x = 739,433,423.65/30,816.32
  6. Step 6: Final answer
    x = 23,994.86

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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.