Home / 28,533.45-39,377-15,613.50

Finding the Fourth Proportional to 28,533.45, 39,377 and 15,613.50

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Solution

The fourth proportional to 28,533.45, 39,377 and 15,613.50 is: 21,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533.45 : 39,377 = 15,613.50 : x
  2. Step 2: Convert to fraction form
    28,533.45/39,377 = 15,613.50/x
  3. Step 3: Cross multiply
    28,533.45x = 39,377 × 15,613.50
  4. Step 4: Simplify right side
    28,533.45x = 614,812,789.50
  5. Step 5: Solve for x
    x = 614,812,789.50/28,533.45
  6. Step 6: Final answer
    x = 21,547.09

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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.