Home / 42,393.16-63,587.58-12,810.88

Finding the Fourth Proportional to 42,393.16, 63,587.58 and 12,810.88

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Solution

The fourth proportional to 42,393.16, 63,587.58 and 12,810.88 is: 19,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,393.16 : 63,587.58 = 12,810.88 : x
  2. Step 2: Convert to fraction form
    42,393.16/63,587.58 = 12,810.88/x
  3. Step 3: Cross multiply
    42,393.16x = 63,587.58 × 12,810.88
  4. Step 4: Simplify right side
    42,393.16x = 814,612,856.87
  5. Step 5: Solve for x
    x = 814,612,856.87/42,393.16
  6. Step 6: Final answer
    x = 19,215.67

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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.