Home / 28,280.72-42,415.86-10,746.32

Finding the Fourth Proportional to 28,280.72, 42,415.86 and 10,746.32

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Solution

The fourth proportional to 28,280.72, 42,415.86 and 10,746.32 is: 16,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.72 : 42,415.86 = 10,746.32 : x
  2. Step 2: Convert to fraction form
    28,280.72/42,415.86 = 10,746.32/x
  3. Step 3: Cross multiply
    28,280.72x = 42,415.86 × 10,746.32
  4. Step 4: Simplify right side
    28,280.72x = 455,814,404.64
  5. Step 5: Solve for x
    x = 455,814,404.64/28,280.72
  6. Step 6: Final answer
    x = 16,117.50

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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.