Home / 42,392.90-63,599.34-12,810.98

Finding the Fourth Proportional to 42,392.90, 63,599.34 and 12,810.98

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Solution

The fourth proportional to 42,392.90, 63,599.34 and 12,810.98 is: 19,219.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,392.90 : 63,599.34 = 12,810.98 : x
  2. Step 2: Convert to fraction form
    42,392.90/63,599.34 = 12,810.98/x
  3. Step 3: Cross multiply
    42,392.90x = 63,599.34 × 12,810.98
  4. Step 4: Simplify right side
    42,392.90x = 814,769,872.75
  5. Step 5: Solve for x
    x = 814,769,872.75/42,392.90
  6. Step 6: Final answer
    x = 19,219.49

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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.