Home / 39,603.04-54,587.10-31,631.20

Finding the Fourth Proportional to 39,603.04, 54,587.10 and 31,631.20

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Solution

The fourth proportional to 39,603.04, 54,587.10 and 31,631.20 is: 43,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,603.04 : 54,587.10 = 31,631.20 : x
  2. Step 2: Convert to fraction form
    39,603.04/54,587.10 = 31,631.20/x
  3. Step 3: Cross multiply
    39,603.04x = 54,587.10 × 31,631.20
  4. Step 4: Simplify right side
    39,603.04x = 1,726,655,477.52
  5. Step 5: Solve for x
    x = 1,726,655,477.52/39,603.04
  6. Step 6: Final answer
    x = 43,599.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.