Home / 42,477.39-63,716.28-11,312.64

Finding the Fourth Proportional to 42,477.39, 63,716.28 and 11,312.64

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Solution

The fourth proportional to 42,477.39, 63,716.28 and 11,312.64 is: 16,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,477.39 : 63,716.28 = 11,312.64 : x
  2. Step 2: Convert to fraction form
    42,477.39/63,716.28 = 11,312.64/x
  3. Step 3: Cross multiply
    42,477.39x = 63,716.28 × 11,312.64
  4. Step 4: Simplify right side
    42,477.39x = 720,799,337.78
  5. Step 5: Solve for x
    x = 720,799,337.78/42,477.39
  6. Step 6: Final answer
    x = 16,969.01

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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.