Home / 31,125.71-46,681.45-8,938.91

Finding the Fourth Proportional to 31,125.71, 46,681.45 and 8,938.91

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Solution

The fourth proportional to 31,125.71, 46,681.45 and 8,938.91 is: 13,406.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.71 : 46,681.45 = 8,938.91 : x
  2. Step 2: Convert to fraction form
    31,125.71/46,681.45 = 8,938.91/x
  3. Step 3: Cross multiply
    31,125.71x = 46,681.45 × 8,938.91
  4. Step 4: Simplify right side
    31,125.71x = 417,281,280.22
  5. Step 5: Solve for x
    x = 417,281,280.22/31,125.71
  6. Step 6: Final answer
    x = 13,406.32

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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.