Home / 42,411.40-63,619.28-10,821.74

Finding the Fourth Proportional to 42,411.40, 63,619.28 and 10,821.74

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Solution

The fourth proportional to 42,411.40, 63,619.28 and 10,821.74 is: 16,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,411.40 : 63,619.28 = 10,821.74 : x
  2. Step 2: Convert to fraction form
    42,411.40/63,619.28 = 10,821.74/x
  3. Step 3: Cross multiply
    42,411.40x = 63,619.28 × 10,821.74
  4. Step 4: Simplify right side
    42,411.40x = 688,471,016.11
  5. Step 5: Solve for x
    x = 688,471,016.11/42,411.40
  6. Step 6: Final answer
    x = 16,233.16

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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.