Home / 42,482.16-63,723.36-12,900.24

Finding the Fourth Proportional to 42,482.16, 63,723.36 and 12,900.24

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Solution

The fourth proportional to 42,482.16, 63,723.36 and 12,900.24 is: 19,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,482.16 : 63,723.36 = 12,900.24 : x
  2. Step 2: Convert to fraction form
    42,482.16/63,723.36 = 12,900.24/x
  3. Step 3: Cross multiply
    42,482.16x = 63,723.36 × 12,900.24
  4. Step 4: Simplify right side
    42,482.16x = 822,046,637.61
  5. Step 5: Solve for x
    x = 822,046,637.61/42,482.16
  6. Step 6: Final answer
    x = 19,350.40

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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.