Home / 28,051.77-42,065.34-10,509.30

Finding the Fourth Proportional to 28,051.77, 42,065.34 and 10,509.30

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Solution

The fourth proportional to 28,051.77, 42,065.34 and 10,509.30 is: 15,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.77 : 42,065.34 = 10,509.30 : x
  2. Step 2: Convert to fraction form
    28,051.77/42,065.34 = 10,509.30/x
  3. Step 3: Cross multiply
    28,051.77x = 42,065.34 × 10,509.30
  4. Step 4: Simplify right side
    28,051.77x = 442,077,277.66
  5. Step 5: Solve for x
    x = 442,077,277.66/28,051.77
  6. Step 6: Final answer
    x = 15,759.34

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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.