Home / 42,622.70-63,931.37-13,038.18

Finding the Fourth Proportional to 42,622.70, 63,931.37 and 13,038.18

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Solution

The fourth proportional to 42,622.70, 63,931.37 and 13,038.18 is: 19,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,622.70 : 63,931.37 = 13,038.18 : x
  2. Step 2: Convert to fraction form
    42,622.70/63,931.37 = 13,038.18/x
  3. Step 3: Cross multiply
    42,622.70x = 63,931.37 × 13,038.18
  4. Step 4: Simplify right side
    42,622.70x = 833,548,644.52
  5. Step 5: Solve for x
    x = 833,548,644.52/42,622.70
  6. Step 6: Final answer
    x = 19,556.45

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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.