Home / 42,920.36-64,368.85-17,956.37

Finding the Fourth Proportional to 42,920.36, 64,368.85 and 17,956.37

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Solution

The fourth proportional to 42,920.36, 64,368.85 and 17,956.37 is: 26,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,920.36 : 64,368.85 = 17,956.37 : x
  2. Step 2: Convert to fraction form
    42,920.36/64,368.85 = 17,956.37/x
  3. Step 3: Cross multiply
    42,920.36x = 64,368.85 × 17,956.37
  4. Step 4: Simplify right side
    42,920.36x = 1,155,830,475.45
  5. Step 5: Solve for x
    x = 1,155,830,475.45/42,920.36
  6. Step 6: Final answer
    x = 26,929.65

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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.