Home / 42,639.48-63,959.22-14,931

Finding the Fourth Proportional to 42,639.48, 63,959.22 and 14,931

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Solution

The fourth proportional to 42,639.48, 63,959.22 and 14,931 is: 22,396.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.48 : 63,959.22 = 14,931 : x
  2. Step 2: Convert to fraction form
    42,639.48/63,959.22 = 14,931/x
  3. Step 3: Cross multiply
    42,639.48x = 63,959.22 × 14,931
  4. Step 4: Simplify right side
    42,639.48x = 954,975,113.82
  5. Step 5: Solve for x
    x = 954,975,113.82/42,639.48
  6. Step 6: Final answer
    x = 22,396.50

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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.