Home / 28,312.65-42,443.87-14,254.29

Finding the Fourth Proportional to 28,312.65, 42,443.87 and 14,254.29

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Solution

The fourth proportional to 28,312.65, 42,443.87 and 14,254.29 is: 21,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.65 : 42,443.87 = 14,254.29 : x
  2. Step 2: Convert to fraction form
    28,312.65/42,443.87 = 14,254.29/x
  3. Step 3: Cross multiply
    28,312.65x = 42,443.87 × 14,254.29
  4. Step 4: Simplify right side
    28,312.65x = 605,007,160.43
  5. Step 5: Solve for x
    x = 605,007,160.43/28,312.65
  6. Step 6: Final answer
    x = 21,368.79

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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.