Home / 18,988.02-28,482.10-5,840.30

Finding the Fourth Proportional to 18,988.02, 28,482.10 and 5,840.30

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Solution

The fourth proportional to 18,988.02, 28,482.10 and 5,840.30 is: 8,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.02 : 28,482.10 = 5,840.30 : x
  2. Step 2: Convert to fraction form
    18,988.02/28,482.10 = 5,840.30/x
  3. Step 3: Cross multiply
    18,988.02x = 28,482.10 × 5,840.30
  4. Step 4: Simplify right side
    18,988.02x = 166,344,065.23
  5. Step 5: Solve for x
    x = 166,344,065.23/18,988.02
  6. Step 6: Final answer
    x = 8,760.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.