Home / 22,575.12-31,158.80-14,075.60

Finding the Fourth Proportional to 22,575.12, 31,158.80 and 14,075.60

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Solution

The fourth proportional to 22,575.12, 31,158.80 and 14,075.60 is: 19,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,575.12 : 31,158.80 = 14,075.60 : x
  2. Step 2: Convert to fraction form
    22,575.12/31,158.80 = 14,075.60/x
  3. Step 3: Cross multiply
    22,575.12x = 31,158.80 × 14,075.60
  4. Step 4: Simplify right side
    22,575.12x = 438,578,579.11
  5. Step 5: Solve for x
    x = 438,578,579.11/22,575.12
  6. Step 6: Final answer
    x = 19,427.52

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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.