Home / 35,415.80-53,123.70-31,038.20

Finding the Fourth Proportional to 35,415.80, 53,123.70 and 31,038.20

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Solution

The fourth proportional to 35,415.80, 53,123.70 and 31,038.20 is: 46,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,415.80 : 53,123.70 = 31,038.20 : x
  2. Step 2: Convert to fraction form
    35,415.80/53,123.70 = 31,038.20/x
  3. Step 3: Cross multiply
    35,415.80x = 53,123.70 × 31,038.20
  4. Step 4: Simplify right side
    35,415.80x = 1,648,864,025.34
  5. Step 5: Solve for x
    x = 1,648,864,025.34/35,415.80
  6. Step 6: Final answer
    x = 46,557.30

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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.