Home / 42,547.05-63,734.58-21,457.77

Finding the Fourth Proportional to 42,547.05, 63,734.58 and 21,457.77

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Solution

The fourth proportional to 42,547.05, 63,734.58 and 21,457.77 is: 32,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,547.05 : 63,734.58 = 21,457.77 : x
  2. Step 2: Convert to fraction form
    42,547.05/63,734.58 = 21,457.77/x
  3. Step 3: Cross multiply
    42,547.05x = 63,734.58 × 21,457.77
  4. Step 4: Simplify right side
    42,547.05x = 1,367,601,958.69
  5. Step 5: Solve for x
    x = 1,367,601,958.69/42,547.05
  6. Step 6: Final answer
    x = 32,143.29

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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.