Home / 28,513.07-42,776.57-20,095.98

Finding the Fourth Proportional to 28,513.07, 42,776.57 and 20,095.98

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Solution

The fourth proportional to 28,513.07, 42,776.57 and 20,095.98 is: 30,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.07 : 42,776.57 = 20,095.98 : x
  2. Step 2: Convert to fraction form
    28,513.07/42,776.57 = 20,095.98/x
  3. Step 3: Cross multiply
    28,513.07x = 42,776.57 × 20,095.98
  4. Step 4: Simplify right side
    28,513.07x = 859,637,192.80
  5. Step 5: Solve for x
    x = 859,637,192.80/28,513.07
  6. Step 6: Final answer
    x = 30,148.89

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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.