Home / 28,750.93-43,111.81-13,155.19

Finding the Fourth Proportional to 28,750.93, 43,111.81 and 13,155.19

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Solution

The fourth proportional to 28,750.93, 43,111.81 and 13,155.19 is: 19,726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.93 : 43,111.81 = 13,155.19 : x
  2. Step 2: Convert to fraction form
    28,750.93/43,111.81 = 13,155.19/x
  3. Step 3: Cross multiply
    28,750.93x = 43,111.81 × 13,155.19
  4. Step 4: Simplify right side
    28,750.93x = 567,144,051.79
  5. Step 5: Solve for x
    x = 567,144,051.79/28,750.93
  6. Step 6: Final answer
    x = 19,726.11

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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.