Home / 42,390.08-63,533.28-14,655.68

Finding the Fourth Proportional to 42,390.08, 63,533.28 and 14,655.68

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Solution

The fourth proportional to 42,390.08, 63,533.28 and 14,655.68 is: 21,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,390.08 : 63,533.28 = 14,655.68 : x
  2. Step 2: Convert to fraction form
    42,390.08/63,533.28 = 14,655.68/x
  3. Step 3: Cross multiply
    42,390.08x = 63,533.28 × 14,655.68
  4. Step 4: Simplify right side
    42,390.08x = 931,123,421.03
  5. Step 5: Solve for x
    x = 931,123,421.03/42,390.08
  6. Step 6: Final answer
    x = 21,965.60

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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.