Home / 42,210.30-63,318.75-14,130.45

Finding the Fourth Proportional to 42,210.30, 63,318.75 and 14,130.45

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Solution

The fourth proportional to 42,210.30, 63,318.75 and 14,130.45 is: 21,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,210.30 : 63,318.75 = 14,130.45 : x
  2. Step 2: Convert to fraction form
    42,210.30/63,318.75 = 14,130.45/x
  3. Step 3: Cross multiply
    42,210.30x = 63,318.75 × 14,130.45
  4. Step 4: Simplify right side
    42,210.30x = 894,722,430.94
  5. Step 5: Solve for x
    x = 894,722,430.94/42,210.30
  6. Step 6: Final answer
    x = 21,196.78

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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.