Home / 42,423.14-63,635.63-12,840.93

Finding the Fourth Proportional to 42,423.14, 63,635.63 and 12,840.93

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Solution

The fourth proportional to 42,423.14, 63,635.63 and 12,840.93 is: 19,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,423.14 : 63,635.63 = 12,840.93 : x
  2. Step 2: Convert to fraction form
    42,423.14/63,635.63 = 12,840.93/x
  3. Step 3: Cross multiply
    42,423.14x = 63,635.63 × 12,840.93
  4. Step 4: Simplify right side
    42,423.14x = 817,140,606.13
  5. Step 5: Solve for x
    x = 817,140,606.13/42,423.14
  6. Step 6: Final answer
    x = 19,261.67

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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.