Home / 42,885.36-64,346.40-17,931.24

Finding the Fourth Proportional to 42,885.36, 64,346.40 and 17,931.24

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Solution

The fourth proportional to 42,885.36, 64,346.40 and 17,931.24 is: 26,904.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,885.36 : 64,346.40 = 17,931.24 : x
  2. Step 2: Convert to fraction form
    42,885.36/64,346.40 = 17,931.24/x
  3. Step 3: Cross multiply
    42,885.36x = 64,346.40 × 17,931.24
  4. Step 4: Simplify right side
    42,885.36x = 1,153,810,741.54
  5. Step 5: Solve for x
    x = 1,153,810,741.54/42,885.36
  6. Step 6: Final answer
    x = 26,904.54

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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.