Home / 58,356.12-87,531.27-20,915.58

Finding the Fourth Proportional to 58,356.12, 87,531.27 and 20,915.58

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Solution

The fourth proportional to 58,356.12, 87,531.27 and 20,915.58 is: 31,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,356.12 : 87,531.27 = 20,915.58 : x
  2. Step 2: Convert to fraction form
    58,356.12/87,531.27 = 20,915.58/x
  3. Step 3: Cross multiply
    58,356.12x = 87,531.27 × 20,915.58
  4. Step 4: Simplify right side
    58,356.12x = 1,830,767,280.19
  5. Step 5: Solve for x
    x = 1,830,767,280.19/58,356.12
  6. Step 6: Final answer
    x = 31,372.33

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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.