Home / 28,436.81-42,680.93-14,406.53

Finding the Fourth Proportional to 28,436.81, 42,680.93 and 14,406.53

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Solution

The fourth proportional to 28,436.81, 42,680.93 and 14,406.53 is: 21,622.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.81 : 42,680.93 = 14,406.53 : x
  2. Step 2: Convert to fraction form
    28,436.81/42,680.93 = 14,406.53/x
  3. Step 3: Cross multiply
    28,436.81x = 42,680.93 × 14,406.53
  4. Step 4: Simplify right side
    28,436.81x = 614,883,813.04
  5. Step 5: Solve for x
    x = 614,883,813.04/28,436.81
  6. Step 6: Final answer
    x = 21,622.82

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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.