Home / 28,056.48-42,075.60-9,331.48

Finding the Fourth Proportional to 28,056.48, 42,075.60 and 9,331.48

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Solution

The fourth proportional to 28,056.48, 42,075.60 and 9,331.48 is: 13,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.48 : 42,075.60 = 9,331.48 : x
  2. Step 2: Convert to fraction form
    28,056.48/42,075.60 = 9,331.48/x
  3. Step 3: Cross multiply
    28,056.48x = 42,075.60 × 9,331.48
  4. Step 4: Simplify right side
    28,056.48x = 392,627,619.89
  5. Step 5: Solve for x
    x = 392,627,619.89/28,056.48
  6. Step 6: Final answer
    x = 13,994.19

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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.