Home / 42,903.16-64,328.70-19,206.28

Finding the Fourth Proportional to 42,903.16, 64,328.70 and 19,206.28

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Solution

The fourth proportional to 42,903.16, 64,328.70 and 19,206.28 is: 28,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,903.16 : 64,328.70 = 19,206.28 : x
  2. Step 2: Convert to fraction form
    42,903.16/64,328.70 = 19,206.28/x
  3. Step 3: Cross multiply
    42,903.16x = 64,328.70 × 19,206.28
  4. Step 4: Simplify right side
    42,903.16x = 1,235,515,024.24
  5. Step 5: Solve for x
    x = 1,235,515,024.24/42,903.16
  6. Step 6: Final answer
    x = 28,797.76

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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.