Home / 28,384.02-39,169.44-15,808.50

Finding the Fourth Proportional to 28,384.02, 39,169.44 and 15,808.50

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Solution

The fourth proportional to 28,384.02, 39,169.44 and 15,808.50 is: 21,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.02 : 39,169.44 = 15,808.50 : x
  2. Step 2: Convert to fraction form
    28,384.02/39,169.44 = 15,808.50/x
  3. Step 3: Cross multiply
    28,384.02x = 39,169.44 × 15,808.50
  4. Step 4: Simplify right side
    28,384.02x = 619,210,092.24
  5. Step 5: Solve for x
    x = 619,210,092.24/28,384.02
  6. Step 6: Final answer
    x = 21,815.45

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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.