Home / 42,316.08-58,311-31,628.40

Finding the Fourth Proportional to 42,316.08, 58,311 and 31,628.40

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Solution

The fourth proportional to 42,316.08, 58,311 and 31,628.40 is: 43,583.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,316.08 : 58,311 = 31,628.40 : x
  2. Step 2: Convert to fraction form
    42,316.08/58,311 = 31,628.40/x
  3. Step 3: Cross multiply
    42,316.08x = 58,311 × 31,628.40
  4. Step 4: Simplify right side
    42,316.08x = 1,844,283,632.40
  5. Step 5: Solve for x
    x = 1,844,283,632.40/42,316.08
  6. Step 6: Final answer
    x = 43,583.52

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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.