Home / 42,765.12-64,152.96-14,690.88

Finding the Fourth Proportional to 42,765.12, 64,152.96 and 14,690.88

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Solution

The fourth proportional to 42,765.12, 64,152.96 and 14,690.88 is: 22,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765.12 : 64,152.96 = 14,690.88 : x
  2. Step 2: Convert to fraction form
    42,765.12/64,152.96 = 14,690.88/x
  3. Step 3: Cross multiply
    42,765.12x = 64,152.96 × 14,690.88
  4. Step 4: Simplify right side
    42,765.12x = 942,463,437.00
  5. Step 5: Solve for x
    x = 942,463,437.00/42,765.12
  6. Step 6: Final answer
    x = 22,038.13

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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.