Home / 42,890.87-64,341.06-14,807.74

Finding the Fourth Proportional to 42,890.87, 64,341.06 and 14,807.74

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Solution

The fourth proportional to 42,890.87, 64,341.06 and 14,807.74 is: 22,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,890.87 : 64,341.06 = 14,807.74 : x
  2. Step 2: Convert to fraction form
    42,890.87/64,341.06 = 14,807.74/x
  3. Step 3: Cross multiply
    42,890.87x = 64,341.06 × 14,807.74
  4. Step 4: Simplify right side
    42,890.87x = 952,745,687.80
  5. Step 5: Solve for x
    x = 952,745,687.80/42,890.87
  6. Step 6: Final answer
    x = 22,213.25

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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.