Home / 42,485.64-63,688.60-14,386.08

Finding the Fourth Proportional to 42,485.64, 63,688.60 and 14,386.08

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Solution

The fourth proportional to 42,485.64, 63,688.60 and 14,386.08 is: 21,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,485.64 : 63,688.60 = 14,386.08 : x
  2. Step 2: Convert to fraction form
    42,485.64/63,688.60 = 14,386.08/x
  3. Step 3: Cross multiply
    42,485.64x = 63,688.60 × 14,386.08
  4. Step 4: Simplify right side
    42,485.64x = 916,229,294.69
  5. Step 5: Solve for x
    x = 916,229,294.69/42,485.64
  6. Step 6: Final answer
    x = 21,565.62

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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.