Home / 42,470.04-63,705.24-12,888.24

Finding the Fourth Proportional to 42,470.04, 63,705.24 and 12,888.24

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Solution

The fourth proportional to 42,470.04, 63,705.24 and 12,888.24 is: 19,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,470.04 : 63,705.24 = 12,888.24 : x
  2. Step 2: Convert to fraction form
    42,470.04/63,705.24 = 12,888.24/x
  3. Step 3: Cross multiply
    42,470.04x = 63,705.24 × 12,888.24
  4. Step 4: Simplify right side
    42,470.04x = 821,048,422.38
  5. Step 5: Solve for x
    x = 821,048,422.38/42,470.04
  6. Step 6: Final answer
    x = 19,332.41

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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.