Home / 28,284.80-42,445.07-15,813.01

Finding the Fourth Proportional to 28,284.80, 42,445.07 and 15,813.01

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Solution

The fourth proportional to 28,284.80, 42,445.07 and 15,813.01 is: 23,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.80 : 42,445.07 = 15,813.01 : x
  2. Step 2: Convert to fraction form
    28,284.80/42,445.07 = 15,813.01/x
  3. Step 3: Cross multiply
    28,284.80x = 42,445.07 × 15,813.01
  4. Step 4: Simplify right side
    28,284.80x = 671,184,190.48
  5. Step 5: Solve for x
    x = 671,184,190.48/28,284.80
  6. Step 6: Final answer
    x = 23,729.50

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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.