Home / 28,875.74-39,848.09-16,129.10

Finding the Fourth Proportional to 28,875.74, 39,848.09 and 16,129.10

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Solution

The fourth proportional to 28,875.74, 39,848.09 and 16,129.10 is: 22,257.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.74 : 39,848.09 = 16,129.10 : x
  2. Step 2: Convert to fraction form
    28,875.74/39,848.09 = 16,129.10/x
  3. Step 3: Cross multiply
    28,875.74x = 39,848.09 × 16,129.10
  4. Step 4: Simplify right side
    28,875.74x = 642,713,769.12
  5. Step 5: Solve for x
    x = 642,713,769.12/28,875.74
  6. Step 6: Final answer
    x = 22,257.92

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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.