Home / 42,901.18-64,373.79-20,437.30

Finding the Fourth Proportional to 42,901.18, 64,373.79 and 20,437.30

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Solution

The fourth proportional to 42,901.18, 64,373.79 and 20,437.30 is: 30,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,901.18 : 64,373.79 = 20,437.30 : x
  2. Step 2: Convert to fraction form
    42,901.18/64,373.79 = 20,437.30/x
  3. Step 3: Cross multiply
    42,901.18x = 64,373.79 × 20,437.30
  4. Step 4: Simplify right side
    42,901.18x = 1,315,626,458.37
  5. Step 5: Solve for x
    x = 1,315,626,458.37/42,901.18
  6. Step 6: Final answer
    x = 30,666.44

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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.