Home / 28,083.04-42,136.81-14,920.00

Finding the Fourth Proportional to 28,083.04, 42,136.81 and 14,920.00

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Solution

The fourth proportional to 28,083.04, 42,136.81 and 14,920.00 is: 22,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.04 : 42,136.81 = 14,920.00 : x
  2. Step 2: Convert to fraction form
    28,083.04/42,136.81 = 14,920.00/x
  3. Step 3: Cross multiply
    28,083.04x = 42,136.81 × 14,920.00
  4. Step 4: Simplify right side
    28,083.04x = 628,681,062.56
  5. Step 5: Solve for x
    x = 628,681,062.56/28,083.04
  6. Step 6: Final answer
    x = 22,386.51

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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.