Home / 30,927.61-42,681.09-16,780.96

Finding the Fourth Proportional to 30,927.61, 42,681.09 and 16,780.96

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Solution

The fourth proportional to 30,927.61, 42,681.09 and 16,780.96 is: 23,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927.61 : 42,681.09 = 16,780.96 : x
  2. Step 2: Convert to fraction form
    30,927.61/42,681.09 = 16,780.96/x
  3. Step 3: Cross multiply
    30,927.61x = 42,681.09 × 16,780.96
  4. Step 4: Simplify right side
    30,927.61x = 716,229,664.05
  5. Step 5: Solve for x
    x = 716,229,664.05/30,927.61
  6. Step 6: Final answer
    x = 23,158.26

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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.