Home / 28,705.02-39,612.93-16,129.77

Finding the Fourth Proportional to 28,705.02, 39,612.93 and 16,129.77

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Solution

The fourth proportional to 28,705.02, 39,612.93 and 16,129.77 is: 22,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.02 : 39,612.93 = 16,129.77 : x
  2. Step 2: Convert to fraction form
    28,705.02/39,612.93 = 16,129.77/x
  3. Step 3: Cross multiply
    28,705.02x = 39,612.93 × 16,129.77
  4. Step 4: Simplify right side
    28,705.02x = 638,947,449.93
  5. Step 5: Solve for x
    x = 638,947,449.93/28,705.02
  6. Step 6: Final answer
    x = 22,259.08

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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.