Home / 28,068.02-42,102.08-18,726.29

Finding the Fourth Proportional to 28,068.02, 42,102.08 and 18,726.29

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Solution

The fourth proportional to 28,068.02, 42,102.08 and 18,726.29 is: 28,089.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.02 : 42,102.08 = 18,726.29 : x
  2. Step 2: Convert to fraction form
    28,068.02/42,102.08 = 18,726.29/x
  3. Step 3: Cross multiply
    28,068.02x = 42,102.08 × 18,726.29
  4. Step 4: Simplify right side
    28,068.02x = 788,415,683.65
  5. Step 5: Solve for x
    x = 788,415,683.65/28,068.02
  6. Step 6: Final answer
    x = 28,089.47

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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.